Spec Carbureted Engines

[Supercharged111]

What exactly did that car come with for a motor? I believe Bob Denton over in the Great Lakes region has a 3rd gen running a carb'd setup. Matter of fact we have a guy here who hasn't run in a couple years. His wasn't spec but the Dyno came out good with no cheater curve.

[64GunPilot]

What exactly did that car come with for a motor? I believe Bob Denton over in the Great Lakes region has a 3rd gen running a carb'd setup. Matter of fact we have a guy here who hasn't run in a couple years. His wasn't spec but the Dyno came out good with no cheater curve.

Plum's car (soon to be my car) is a 305 TPI, L31 heads, 255/307 and 3000lbs without driver. Engine is fresh. I guess those numbers, I may not be as competitive. But Im sure it'll be awhile before my driving is good enough to need 11hp to stay with the pack.

Its legal for me to use any 350 block for a spec carb engine right? I'd just need stock manifolds instead of shorty headers....I think.

[Supercharged111]

255/307 is doing really good for a TPI. They tend to make so much more torque than hp that you end up backing timing off to keep from going over on torque. 255hp is plenty, I think the Jordan-mobile makes about that much and they hang out up front. I'd take it to a Dyno myself first and verify what it makes, maybe play with the timing some and see if there isn't a little more in there.

[Storm Trooper]

255/307 is doing really good for a TPI. They tend to make so much more torque than hp that you end up backing timing off to keep from going over on torque. 255hp is plenty, I think the Jordan-mobile makes about that much and they hang out up front. I'd take it to a Dyno myself first and verify what it makes, maybe play with the timing some and see if there isn't a little more in there.

Since when is playing with the timing legal?

[BADVENM]

You can do whatever you want with the timing, just have to specify what it is on the dyno sheet.

7.6.2 Timing tolerance shall be +/- 1 degree.

[64GunPilot]

Going back to original object of the thread....is is legal for me to put a carb'd spec 350 in a 3rd Gen? I've read in other places on this forum through searches, that no 350 is allowed in 3rd gens and I quote "period" but they were talking about 350 TPI and I think those threads were at least 10 years old.

[Fbody383]

You'll hear this a lot... look at the rules.

Section 6.13 in part:
5.7 liter (350ci)
1. Holley carburetor 600cfm-4bbl #4776
2. Edelbrock Performer intake manifold #2101, #2104, #2116, #7116, #7516
3. GM Camshaft #24502476
4. GM L31 #12558060 or L30 #12552520/12558059 heads
5. GM OEM H.E.I. distributor (non-computer controlled)

And just keep asking questions...