Spec Carbureted Engines

[64GunPilot]

6.12 & 6.13 Allows the spec carbureted engines. I don't see any posts with folks using these, or asking about them. What kind of power do they put down and is anyone competitive with these setups? I have more than a few vortec 5.7 laying around from 96-99 chevy trucks, tahoes, ect. Just curious if they could be used as spare engines. Update/Backdate rules should not apply in this instance as the rule states the spec as a 5.7 liter with those specific components. Curious about their power numbers. My first tech question of many.

[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.