Going procharger soon. Looking to make around 6-8psi. Do I also need to order a set of sparks? I think I saw the A&A kit come with some colder ones?

 

I would. Get recommendations from Dallas Performance, A&A, or ECS.

If it were me (and I am not an expert), I would start colder and go warmer once proven. Something like a BR7EF is two heat ranges colder, and non-projected-tip. A more common plug for your application would be a TR6, which is one heat range colder than stock, and projected-tip. But again, get expert advice.

 

Depends on if you have a Z06 or a C6. TR6 is stock heat range on a Z06. For 9psi or less, one step colder will be good.

Make sure your AFR is fat and your tuner understands the timing multipliers or you'll be picking up the pieces.

 

Thanks guys. Have a normal C6. What about gapping?

 

.030

i ran .035-.040 and it was missing at high rpm.

 

with my stock pulley on the p1sc procharger suggested ngk tr6. With my 4.25 pulley pushing 8 psi my tunner suggested tr7 with the out of the box gap.