Okay so I'm doing a stock bottom end rebuild with a Hawks sinister cam specs on cam are 230/236/591/601 I'm looking for best bang for my buck iv currently got stock 241s and I'm wondering if in better off with a set of 243s and the doorman intake or just pass on better heads and go fast 92mm intake I'm trying to build a street car/ play toy I'm looking for a power band of around 1800 _6500 all ideas on how to achieve this goal reliably are aprecapeciated shooting for 450 or so at crank

 

Some ported 243's will add more power than any intake

 

The Dorman intake is a pretty good intake, I'd pick it up over the Fast for the price difference. The Dorman LS2 I run on the dyno beat out the GM LS6.

 

I would lean towards purchasing the best heads your budget will allow. Sure, buying heads/cam together is more convenient..i.e., one tune, easier to install at the same time. You have a good amount of options. You could go with stock 243's which might add 15-20 hp and add a used fast 92 or 102. You could also have your 243's ported/polished. Advanced Induction and TEA offer fantastic porting programs. One other option that I think gets looked over is...keeping your 241's and have them worked over by Advanced Induction. They offer a 219cc High Compression CNC program that really makes good power while utilizing your exsisting zero cost heads. Lastly, if money permits and you want to go aftermarket..Trickflow/BTR, Mast, and AFR, Mamo Sportsman are awesome but pricey. Im not a salesman lol, and since we all have opinions...My current heads are AI 226cc 243's and I'm super happy with them. I think it's one of the best option outside of aftermarket. Sorry for the long post, I just think it helps to know your options and make decisions for the big picture. Good luck.

 

I missed it before, but you mention wanting about 450 hp at the crank. That's like 380-400 at the wheel. With that said you really don't need to do anything since you're probably already there lol

 

I missed it too. Ok so scratch my novel I wrote lol. Yeah with that cam, headers/exhaust he should be close 400 at the rear already. Which begs the question, since your already there...why stop there?

 

If you have the money to buy a good intake like a FAST, forget it and then spend a few hundred more and send your 241's to AI. They have an excellent CnC program that will make the 241's flow almost as well as a set of ported 243's and will make plenty of power.