webers, vic jr, 4bbl carb? engine possibilities...HELP ME OUT

I am so full of questions and opinions today. Here is my situation:

I either want to build a potent 347 or 427(small block) in my 1966 mustang. The car is not a drag racer, it is a street cruiser. I have a built C4 with a TCI 3300 stall converter, a 9" rearend with aubrun 3.50 gears. I have a set of late model twisted wedge heads that flow 320/235. The guy I bought them from said they went 134 in the 1/4 on a stock bottom end 302 naturally aspirated. I also have 1.7 Cobra Roller Rockers.

Money is somewhat of an object, but i am about to make a killing selling my other car.

Benefits of having the 347:

I have a 4340 eagle crank already
a Prepped roller block
an msd pro billet carb dist
a 650 speed demon carb -however....

I am REALLY considering a complete weber setup....but i dont know how they would perform on this engine. -opinions on that please.

The cam will be custom ground by compcams. The other benefit of this engine is weight and I wont have to switch transmissions.

Drawbacks:
Strength of block

Benefits of the 427w:

Wow factor (I guess I can get that with the webers on a 347)
STRONG block and crank, no worries about putting high HP through it
Lots of torque

Drawbacks:
Id have to start collecting parts from scratch again.
Have to swap trans to handle that torque
Extra weight (nominal)
Clearance issues with Carb/intake/aircleaner


So...what would YOU do and why?

427w?
347 with webers?
347 with a demon carb?

Shane

I think I read somewhere that I would get more maximum HP with a single carb, but more torque across the board with webers.

That torque is what is going to make the car faster, not peak hp.

Correct?

Sad,

You know anywhere I can look up prices for complete weber setups? I can only find one place that sells them (Inglese). They want $4500+ for the setup.

thats what i was hearing too...about the webers being worn out. It was a thought though. I am going to stick with a 347 since i have a lot of the parts already.

The 427...you dont need an SVO block. I thought you did too, but from the prices from coasthigh...it doenst seem like an SVO block.

3300 may sound steep...but it is really nominal for a car with 3.50 gears and a C4. PLus, I needed something loose for a radical cam. Need the radical cam to help with the stage III heads. So, it all fits together.

thanks for everyones input.

GaPonyFarm said:

Allcarfan, You have so many ideas that I'd be surprised if you ever got anything done. You tear into that rearend yet?

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Weather was really nasty here yesterday so I didnt have a chance to open it up. My ideas...are for the engine. I couldnt decide, but now the decision has been made. 347/twisted wedge stage III heads/custom ground cam/ported weiand stealth/650 speed demon carb.

Finally got my leafs and shackles in yesterday, so the rear should be put back together this weekend...after the bottom of the car is stripped of dirt, grime, grease, etc...prepped and then painted.

Transmission is done - built C4 that went 6.60s in the 1/8th backed by a TCI converter - new reverse manual valve body...transbrake is wired, but i will probably never use it. Bellhousing powdercoated, cross member powdercoated, custom trans pan installed and powdercoated. Polyurethane transmission mount.

Still having issues with my shifter (I have to send it back to summit because the reverse lockout stopped working). Its a B&M hammer shifter.

Interior is 80% done. I have all of my body parts (for the car)- R style front apron, gt350 hood, fiberglass decklid with spoiler. I have all of my exhaust components (less headers right now). Replaced floor pans, replace cowl.

Wheels are on and fitting great...17x8" chrome bullits with nitto 555r (245/45) tires in the rear and kumho 225/50s in the front. Shelby drop completed, 620 springs are in, all four fenders are tucked. 3/4 of the undercarriage has either been powdercoated or stripped and painted - still gotta finish up that last 1/4.

So....I have been pretty bizzy.

Whats left:

Build and install engine (should take about a month or so)
Torque everything down to spec
finish the granada disk swap
finish up the interior
get the body straight and painted(already have someone doing this for me)
Install exhaust
more than likely I will replace the glass while its being painted.

Then I should be on the road. Should being the operative word here.

taylor4g63 said:

With those tires out back, theres NO WAY your going to be getting much traction with a built 427. sounds like a sweet ride man, should be killer when u get done.

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THAT was another concern...haha. Look at me...I can smoke tires an entire 1/4 mile!! I still have to purchase those Calvert? bars or whatever they are called for the rear. Hopefully they will help. Im fabbing an Xbrace to bolt to my subframes since they are welded in. Hoping to get away with not having a cage -for chassis strength purposes only of course