When using ported or aftermarket heads on an FI motor, is a large cam still as important as with an NA motor? IE...

stg 2.5 317 heads from TEA with 2.04 int valve, 1.57 exh valve, with 212/218 lift .522/.525 dur Cam....On a 6.0L

I guess my question is, is this setup going to work well or do I need a larger cam? Any suggestions please!!

 

for FI you need no higher than 10:1 for a streetable car and around 114lsa cam- little,no over lap-

 

Ive spent the last couple months trying to figure out whatheads and cam to run on my forged 370, with a D1SC and possibly nitrous on top of it. Im no closer now then i was back then.

 

Talk to some sponsers and ask them for advice. Hopefully they'll be glad to help. Ive been talkin to speedinc and they've been helpful to me.

 

Is a large cam still as important as with an NA motor? No. Just by upping the boost you will force more air into the engine with the blower. A larger cam helps, but is not essential. The camshaft you have will work just fine, how much power are you looking to make? Bob

 

On 7lbs I made 475 with stock LS1 241 castings. I would like to see 550-575 with these new heads and 10lbs.

 

I'd keep the cam you have. 550-575 rwhp will not be a problem. Bob