smooth1990

So i have been considering a cam swap for a couple months on my procharged 383 LT4 that I built last summer. I went with a off the shelf comp cam 280 XFI originally.

After not making the power I thought I should at the wheels and doing a ton of research and talking with a few guys that know more about cams than I do, I have decided to go with a custom ground cam from Jim at TPIS.

Here are the specs of the old cam and of the new cam. Opinions are more than welcome considering I havent yet installed the thing..

Comp Cam 280XFI HR-13

230/236
576/571
113 lobe sep

TPIS ground cam

233/241
530/545
115 lobe sep

EDIT: This is a blower motor wit 10:2.1 compression that makes only 7.5 psi now but I am going up to 15psi after the cam swap.