firehawk618

iTrader: (14)

I know it can vary but what are some opinions on what i'll see with the following....

408ci, patriot stg 3 6.0 heads, ls6 intake, 1 3/4 lt with ory and magnaflow catback, dual ati intercoolers.

Blower pulley is 3.45 and prev owner was seeing 14 psi, I only seem to get 11 but his motor was a 402 and same heads but intake side of the heads were not ported.

So what psi with the following...

3.45
3.55
3.85

Thanks