I have been reading through all of the threads and I have pulled together a 305, (1)081 cylinder head and a lT1 cam (191/196 B body replacement cam, and a 705 LT1 cam 201/201). I have a set of TPI manifolds with air tubes (required here) that have the 2.25 exhausts (I bought these several years ago). I plan on pocket porting the 081's.

Will this rebuild of this engine be a good combo power-wise? I will be using a 3" cat and dual mufflers (2.5")

 

Probably not much over stock even if well tuned. I wouldn't do it. A pair of headers will probably yield more power.

 

well the cam will build more power for sure. but it'd be nice to just go ahead and change the heads to a better flowing head and put some emission legal headers on there.

 

This is POOR advice!!! The 081s really don't flow much better and suffer on the exhaust side compared to the 187s. You will LOSE power everywhere under 5,000 rpm with the LT1 cam.

 

Wow, thanks for the advice.

 

Just realized I worded that weird. The LT1 cam is a GO with chip tuning, but I was talking about the 081 heads would lose you power with only the LT1 cam. You can make some AWESOME torque with the LT1 cam and Swirlies. The best addition for a stock L03 is a full exhaust system from the head ports out and don't use parts designed for a L03.

 

Would you use the 2.25 Tpi manifolds if you already had them?

For the 305 engine:
187 heads (have)
97 LT1 cam 201/207 (have)
305 .030 over (have pistons and rings)

Stock intake, tbi air inlet CAI
run stock injectors with Caprice 350 fuel pump, but up pressure to 15-18psi?

 

fast I said the cam will build more power and i would change the heads to a better flowing head. I didnt give an exact example I know but I did not mean run the 081's by any means. Can you please reword that otherwise everyone will assume im a complete idiot. (i know i am but anyway)

 

Honestly I wouldn't even bother getting an LT1 cam after using the ZZ4 cam. It's not hard to tune in and it made a big SOTP improvement over the peanut cam. Just make sure you get a good stall and gears with it.