496 set up

[87cutty]

I'm trying to set up my 87 Cutlass for a 496 big block Chevy but I been told that my setup would be very difficult to do. I want to be able to drive it on the street at least 2 hours away, with that said I've got A 496, I have a dual plane or a single plane intake i can use, with either a 750 or 1050 carb, 990 gm heads, 25+cc dome distons 10.7 commorescom ratio, cam 618 lift 306 duration, turbo 400 bullet-proofed no converter yet 9 inch with 350 gears 31 spline axles. just trying to figure out what would be the best setup to go with any help would be much appreciated thank you

 

[-83MONTESS-]

If you want a driver I would go with the dual plane and the 750. I ran a Quick Fuel on my 496 for a year before switching to fuel injection and it worked just fine. You're probably gonna end up with a 3k ish converter. If you race it I think you will have a mismatch with the cam and the rear gears. Usually a cam that big asks for 3.73+

 

[bracketchev1221]

What is the duration of the cam at .050" lift? I think for driving it, I would go with the 4150 carburetor, though a 750 is a little small. If it was me, I would use a 1000 cfm 4150 carb on a victor Jr single plane intake. I am guessing the cam is not that big.

 

[bob64]

Driver-750cfm & dual plane
Street and strip-1050cfm & dual plane
Strip-1050cfm or bigger and single plane

Alot depends on your internals and rpm your going to max it to.

 

[Jakes442]

A single plane intake and a 1050 will be a pig at low rpm's with a 3.50 gear. Go with the dual plane and 750 carb and 3000 stall converter. If you decide to go quicker, switch to a 3500 stall, 4.10 gear and your 1050 carb.

 

[lilbowtie]

I know you want to be able to drive it on the street but what is your real goals? As said you have quite a miss-match combo which you might want to re-think.