Originally Posted by JaBoT

Still doesn't sound right.

Originally Posted by InfernalVortex

1 hp per cubic inch is not easy to do. GM could never do it, that's for sure. We can do it if we sacrifice enough low end torque and put enough money into cylinder heads. Basically your cheapest way to get into the 350-400 range is to hope you have flat top pistons that arent .045 in the hole, and then to get some Vortec heads and switch to an XR276 roller cam. That will require machining the valve guide to get enough clearance for that lift. That cam is 224/230 @ .050 and should have a power band around 2000-5800 or so. It should get you between 350-380hp. A cheaper option is Vortec heads and an LT4 hotcam, that's about 325-350hp, again, roller cam. You have an early 80's block, so you're not going to be able to go roller cheap... The only way to hit 350+ hp on a 350 is good heads and a good cam. Doing it and keeping the street manners is easy if you can go roller cam. If you're limited to flat tappets, you're gonna have a rough time of it. Maybe something like an xe274, but that's pretty lumpy for a street cam although you have the gearing for it. An xe268 is a reasonable street cam and will get you 310-340hp on a 350 with decent heads.

Originally Posted by JaBoT

cam 1 is way to big. cam 2 is pretty small, but if i had to choose cams 2 because you have stock heads.