Ok I've done some searching but couldn't find anything right away. I am rebuilding my 86 305 TPI. I am wanting to change the cam but want something hotter. I am putting on a ported plenum, bigger runners and intake and headers as well as having the stock heads redone but can't find a cam that will give me better horsepower. I want to get close to 300 to 350 horsepower so which do I need? All the computer cams I've seen say for stock motors (which mine isn't going to be). Please help or at least point me in the right direction.

Thanks

 

Have you looked at the comp cam 08-501-8?

 

Summit makes a kit for 150.00, I think it is a G5000 that has descent springs, cam, and lifters.
I'm running one in a 86 305 TPI.
I did a little port work while engine was down.

 

How do these cams sound? I am wanting a little rumble not something just beating the ground to death. Also what about hp increase? Do we have any figures? Thanks for the help.

 

Cam has a slight loppy sound, but it's not really that big.
Only test is with buttometer.

 

When I had my 86 with ported plenum,ported stock base,ported SLP runners,worked stock heads I went with retro-fit lifters so I could use a roller cam in a non-roller block.Went with a Comp Cams custom grind 210/215/499/499 that put it in the 13.90's which I believe is around 300 rwhp.Still have the retro-fit lifters & pushrods PM if interested.