Holley systemax kit???

[pleasehelp]

First off, can this kit be used in our year cars? They only list the kit for 1986-93 5.0 engines. I wanted to do HCI during the winter and was telling a friend about how I was getting the Trickflow kit and he told me to go with the Holley kit instead. He told me that the Holley kit has the better intake and camshaft than the Trickflow kit. He was telling me that he knows a guy that had Trickflow heads and they cracked at the dome where the valves are.
That's the first time I've heard such a thing about those heads. If that's true than it sucks cause I really wanted to go with the Trickflow kit cause it's $200 cheaper than the Holley kit, it comes with more stuff and it's rated 10 more hp than the Holley kit. Can you guys tell me anything you know about any of this? Thank you.

Holley Systemax Kit

Trickflow Kit

 

[urban96]

both kits work, u just need an intake elbow adapter

 

[OrangeMustangGt]

yeah, i dont know about holly's cam or heads, but there intake is DEF. better hands down, imo

 

[Killercanary]

We put the holley kit on my dad's 91GT and it took him from a 13.6 at 98mph to a 12.6 at 107mph. We then had Ed Curtis port the heads and intake and make a custom cam for the setup and it now runs 11.9 at 115mph NA. I really like the holley kit, the old cam that came in it sucked but they have fixed that, and the heads used to use cheap keepers, but they may have changed that. Ed was impressed with the heads after a little port work. My dad's 91GT weighs 3350lbs BTW with him in it.

 

[Joes95GT]

I believe the cam that comes in the Holley kit is Lunati's version of the E-cam.

I'd go with the Holley kit.

Joe

 

[pleasehelp]

Nice. Thanks guys. Does anyone know where the cheapest place to buy the kit at? Also, where can I buy the matching elbow adapter? Thanks again.

 

[GTJake]

Summit or Jegs. I'd prolly sport the Holley kit with a different cam.

Jake

 

[Killercanary]

Cheapest we found was advanced auto, I kid you not. That is where we got dad's!!!

I'm 90% sure they offer the kit with 2 different cams, I think one is emission legal, the other isn't. Call holley before ordering to find out. According to this they only list one...
http://www.holley.com/HiOctn/ProdLine/Products/SM/SMK/300-501.html

If the above info is current, then this "system" has had 3-4 cam changed since its debut, make sure to check to see which cam you are getting if you buy on as it could be an old kit.

 

[95snoozer]

holley and 4.10s

to bad you couldnt mix and match and run the trick flow heads in the holley kit

 

[Fast94Cobra]

i would opt for tf or afr heads when building my combo, but obviously decent results can be had with holley heads. heads are the most critical part of building an NA combo and all the data ive seen clearly shows that their are many better options than holley. i would use their intake but look elsewhere for heads and cam, jmo.

 

[DaveB]

Does anyone know how either of these cams work with a turbo? I've also been looking over both kits carefully and plan on getting a turbo a ways down the road, and would rather not have to change cams if I dont have to.

 

[nmcgrawj]

ill be running the Holley intake with a set of TFS heads and a custom cam.

 

[Joes95GT]

Does anyone know how either of these cams work with a turbo? I've also been looking over both kits carefully and plan on getting a turbo a ways down the road, and would rather not have to change cams if I dont have to.

Most turbo cams are reverse split patterns (intake side favored) with a wide LSA. These generally would make for a half decent N/A street cam if you have a very efficient, AFR-like exhaust port where tons of exhaust duration or overlap isn't necessary.

Talk to a professional before you do, but I'd bet that if you went with a "touched up" Holley head, and a custom turbo cam, it would perform pretty well on the street, and would definitely be fuel injection friendly.

Joe

 

[Jo_885o]

uhhh... I'm biased (see sig) cam is better imo and comes as a complete ie gaskets, rr, etc....