Its almost back together so its got me wondering if all this work is going to pay off ...give me some ideas on what it'll run so I won't be too dissapointed if it runs slower than expected...

- Originally L98 TPI 350 converted to a Holley 750cfm
- Hedman 1 5/8" headers, 3" all the way back into Hooker Aero-Chamber muffler
- Edelbrock Performer RPM intake
- Fully ported iron L98 heads
- GMPP LT4 HOT cam (218/228 @.050, .492/.492, 112lsa)
- 3.27 posi, stock 700R4 and convertor (for now)
- about 250-300lbs taken off the whole car

With good tuning and traction do you think very low 13's are possible? My next round of mods will be a 2800-3000'ish torque convertor and I'm thinking of spraying 50-75 shot ...stock bottom end, I know, I actually trust it. If I blow something up I have nothing to lose anyway.

When the car was bone stock it ran 14.4 @ 94mph. I really want to see some mid 12's on spray. Think its possible?

 

My guess would be the mid 13 range 13.3-13.5 possible, course that's just my opinion.
I'm not an expert on carbs, but do you think 750cfm is a bit much for that setup?

I'd say with 3:42 gears and the right converter you'll hit high 12s easy.

 

I agree with mid 13's. you should raise the gear though that is the week spot...nice setup by the way

 

Gears are in the future but since I have a 9-bolt they are way outta my budget right now. I'd be really happy with 13.3's on motor. As for the 750 being too big I don't think it is at all when tuned. I have the same throttle response, power, and I get almost the same gas milage with the carb as I did with TPI. I don't think anyone with a 350ci+ can go wrong with a Holley 750