Summit Racing Carb - Anyone with experience?

[69Tool]

Hello,

I am going to get a new carb for my car (351 W with a beefier cam, aluminum heads, etc) and I am curious if anyone has any experience with the Summit Racing carb, Summit Racing SUM-M08600VS - Summit Racing Street & Strip® Carburetors - Overview - SummitRacing.com. It looks very similar to the Holley 4010, is that basically what it is? Thanks.

 

[Crs]

I bought that carb for my 289 on my 68 too. i have not driven my car yet........engine getting put back together. From what i hear, that is an old 4010 Holley with all the good stuff on it. $400 for intake, carb, and air cleaner....sold!

 

[htwheelz67]

depending on the cam you are running, if its slightly big I wouldn't, its a good carb but lacks tunability in some places.

 

[2+2GT]

Hello,

I am going to get a new carb for my car (351 W with a beefier cam, aluminum heads, etc) and I am curious if anyone has any experience with the Summit Racing carb, Summit Racing SUM-M08600VS - Summit Racing Street & Strip® Carburetors - Overview - SummitRacing.com. It looks very similar to the Holley 4010, is that basically what it is? Thanks.

Well, I have been waiting for a thread like this, too, although there was a pretty extensive write-up on another forum a while back.

The narrative goes like this, I dunno how accurate it is:

The Summit is based on the 4010, but Holley destroyed the tooling when they dropped it. This one was based on it, but you can see the fuel inlets were angled down, rather than straight, and a few other changes, supposedly involving the original designer.

Many of the features of the carb, such as the one-piece body and top plate, and the annular discharge on the primaries are features of the Autolite 4100, but the Summit uses tuning and adjusting parts common to Holley.

 

[mrmustangman357]

Summit Carb Review and Road Test - FordMuscle.com Forums

 

[TeamEntity]

looks like a pretty good set up. but i'm not in anyway a holley guy.

 

[69Tool]

With the cam that I have, I think I will get the 750 cfm version of this carb. Thanks for your feedback.

 

[TeamEntity]

on my last build and 306 motor and gt-40p heads i used an eddy 750 and that motor was a beast. easy to tune and enough juice for future add ons.

 

[69Tool]

Well, I went ahead and bought the 750 cfm carb, Summit Racing SUM-M08750VS - Summit Racing Street & Strip® Carburetors - Overview - SummitRacing.com. I will let you know how it turns out. Please don't expect a write-up like the extensive one done on the other forum..., but I will do my best to provide a good review.

 

[htwheelz67]

I hope it works good for you, I'm not sure what improvements they made to the design but I had a 600 4010 years ago on a 351w with ported heads and comp 268h cam I had to pull the venturis out and put wire strands in the emulsifier tubes it ran super rich at idle and had a transition stumble I could not cure, I put it on a milder 351w in a van I had and it ran excellent.

 

[D.Hearne]

on my last build and 306 motor and gt-40p heads i used an eddy 750 and that motor was a beast. easy to tune and enough juice for future add ons.

So what's your point ? He never asked for info on an Edelbog carb.

 

[SScott]

I had one of the 4010's and didn't care for it but saw these and was also interested. I can't wait to see what you say as far as how it runs.

 

[TeamEntity]

founding third member, my point is that holleys pretty much suck. This is why they came out with there street avenger series and are always coming out with new ways to elimnate all of the gauranteed problems with them. No matter what unit you buy. To each his own, but why spend that money on a afterbirth of a carb when you don't have to? P.S. Quit being so damn negative.

 

[D.Hearne]

founding third member, my point is that holleys pretty much suck. This is why they came out with there street avenger series and are always coming out with new ways to elimnate all of the gauranteed problems with them. No matter what unit you buy. To each his own, but why spend that money on a afterbirth of a carb when you don't have to? P.S. Quit being so damn negative.

Holleys suck ? That's the best you can come up with ? Geee that's funnny, none of mine have problems. Tune em once, then leave them the hell alone. My 3 twos have been untouched now for 6 years aside from one rejetting after adding spacers under them last year. Ditto for the 570 on a roller 5.0 in my 89 Ranger. Ditto for the 3310 750 that it replaced (both bought nearly new after some neophyte like yourself gave up on em) And likewisefor the 600 that was on that motor a few years before that. I never have any of the "issues" claimed by guys like yourself who are constantly putting Holleys down. Could be it's the guy working on the carb and not the carb's fault. Run em with a good electronic ignition system and tune em for the build feed em clean quality fuel, and then leave em alone, they'll stay set for years afterwards. If you're having carb problems, chances are it's the ignition system causing the problem, not the carb.

 

[SScott]

Agreed, I have always had great things to say about Holley's. My current hybrid is the best carb I have ever had.

To avoid any confusion and to clarify the statement above for the post below: when I say hybrid, I mean I have a pro-form body which dramatically improved my power.

 

[TeamEntity]

Hmm hybrid and compensation for a holley to work well. All out race carbs yeah. good stuff. what your average guy needs and uses daily? I'll pass, this has nothing to do with user error, this is leakage, constant jet problems, float problems Oh leakage, power valves, the list goes on. Again, To each his own. I was stating that my eddy 750 was tuned well for a 306 motor with plenty to spare, 750 being the key word here. On what technically is a small motor. This was without jet changes or anything, A easy tune and no leaks.

 

[htwheelz67]

I prefer Demons........or better yet EFI

 

[2+2GT]

Even if you loath Holleys, the Summit, or even the old 4010 Holley, could hardly have any problems in common with the typical, traditional Holley carb. Although the jets and diaphrams are from the earlier Holley, the rest of the design has more in common with the 4100 Autolite. The Summit is actually a new design, based on the 4010, but made with new tools. I'll be watching this thread to see if that is really an improvement or not.

 

[D.Hearne]

Hmm hybrid and compensation for a holley to work well. All out race carbs yeah. good stuff. what your average guy needs and uses daily? I'll pass, this has nothing to do with user error, this is leakage, constant jet problems, float problems Oh leakage, power valves, the list goes on. Again, To each his own. I was stating that my eddy 750 was tuned well for a 306 motor with plenty to spare, 750 being the key word here. On what technically is a small motor. This was without jet changes or anything, A easy tune and no leaks.

None of my Holley's are hybrids nor anything dealing with "compensation" (whatever that is in your mind) All are straight out of the box, no mods, nothing special. Never had leakage(that was a thing of the distant past when all they had were those cork gaskets for them) problems, jet problems, powervalve problems, float problems, in fact, nothing you describe has ever been a problem. If you take a 10 to 40 year old Holley that's been sitting for most of those years, you will have problems. But you'll have the same issues with any 10 to 40 year old carb, no matter the brand. If you don't run clean, quality fuel thru it, you will have problems, no matter the brand. You simply got lucky with your Edelbrock carb. You never took the time or effort to learn your Holley. I'll bet you know just about as much about your Edelbrock as you did that Holley. (bolt it on and go)

 

[htwheelz67]

Holleys will always outperform the edelbrock/carter design but the edels are very reliable and on stock or close to stock work well, you can make an edelbrock carb run excellent on a heavily modded motor but its much more finicky than a holley a demon is the best carb IMHO but you dont tune it like the typical holley.

Powerjection or EZ-EFI is the hot ticket, especially with ignition control, no tools, no gaskets, no fuel spills, no take it back apart and try it again, self tuning and/or get out the laptop or included tuner and press some buttons to make changes or tune while you drive.......try doing that with a carb!