350 tbi torque how much can i produce?

[1994chevymanual]

hey guys look at my sig for information but i have a 350 tbi and i haul a boat around and an enclosed trailer from time to time and i want more of a fun dd as well. I want to keep it a 350 for gas millage but how much torque can i make with a stock bottom end i would like to be around 360 fl/lbs-370 around 3000rpms. is it possible with dart heads cam and headers? any input would be great

 

[thz71]

To the wheels? Or crank? Tbi engines don't get good mileage anyway.

 

[slowburb]

You're vague in describing the heads/cam, so it's a little tough to say. If said "parts" were optimized for a lower compression truck motor, looking for peak torque and power within your usable powerband, and also provided you could "fuel" and "spark" it adequately, then yes, I'd say you would be in the ballpark of a hair over a horse per cube.

 

[1994chevymanual]

i understand i was vague but i was wondering if it is at all possible to make a 350 tbi have 360 foot/pounds of torque at the flywheel i would use dart 165 intake runners with 67 cc combustion chambers, comp cam 12-304-4....201/206 at 50, shorty headers (dont feel like redoing exhaust again), modified throttle body and chip by a local tuner.

 

[ccreddell]

Yes, you can. But you don't need to get too fancy. Vortec heads (will give you a little compression), a TPI, and an EBL with a decent cam and headers will get you real close. I run the LT1 roller cam myself, and I feel I'm getting close to that, and I don't have the TPI yet.

 

[slowburb]

I'd take and use GM vortec castings over those dart 165cc/67cc heads any day of the week, and twice on Sunday.

 

[1994chevymanual]

Yes, you can. But you don't need to get too fancy. Vortec heads (will give you a little compression), a TPI, and an EBL with a decent cam and headers will get you real close. I run the LT1 roller cam myself, and I feel I'm getting close to that, and I don't have the TPI yet.

okay i was talking to some people that tried running vortec heads with a tbi set up and it was a real ***** to tune and liked to run rich. How does you truck do with those heads and not to sound like a newbie but i never heard of the term EBL...

 

[1994chevymanual]

Yes, you can. But you don't need to get too fancy. Vortec heads (will give you a little compression), a TPI, and an EBL with a decent cam and headers will get you real close. I run the LT1 roller cam myself, and I feel I'm getting close to that, and I don't have the TPI yet.

and are you saying convert to TPI?

 

[ccreddell]

TPI will give you more torque in the 2500-4500 RPM range. It tends to die at about 4800. If you are running Vortec heads, you will have to buy a Vortec base manifold to run TPI. EBL refers to Embedded Lockers by Dynamic EFI. Im not having any issues tuning a TBI on Vortec heads.

http://www.dynamicefi.com/

my build; http://forum.gmtruckcentral.com/showthread.php/1549-90-TBI-Upgrades

 

[slowburb]

I'm not so sure the TPI would be required here. A decent dual plane intake and spacer/adapter would more than likely fit the bill.