Nic Cam Compression Ratio

**Roadwarrior** · 02-04-2018

Hey currently rebuilding my l67 for my 2000 GTP Im trying to decide compression ratio with a NIC Cam? 8.5:1 or 9.9:1 I will be using JE Forged pistons the block has been lined honed got ARP main studs and King xp Main and Rod bearings along with l32 Rods. Im running a double roller chain and 136 valve springs I also have a Gen V feeding a stage 2 Intercooler and Pacesetter headers. My question is what kind of pulley can I run with the higher compression or should I stick with the lower compression and up the boost?

**Iceman6669** · 02-04-2018

If you are gonna be on the blower, Id recommend the higher compression ratio.

**GTPpower** · 02-05-2018

That^^

Pulley size is going to depend on what fuel you're running and how well your intercooler works.

**Roadwarrior** · 02-05-2018

In only have 94 available in my area But I also have Meth Injection... Just trying to get some idea of what pulley can be run with this cam and higher compression.

**Scottydoggs** · 02-05-2018

im on a 2.8 with meth, high comp l36 block stock cam but i have 1.95 rockers. and a fsic. i make about 12-13 psi.

you might be able to run a 3.0, 3.2, this is where having a few pulleys on hand helps out a lot, you never really know what its gonna like best. need to play with it.

do not use l36 valve springs, you want like 130 lb springs with a xp cam.