[BULLITT 574]

What would be a safe gap for the plugs with Granatelli COPS??
I am S/C with aftercooler present gap 0.028" with stock cops. 430 RWHP 400 RWTQ

Any suggestions would be much appreciated

 

[Jim5081]

Kenne :toocool: lurks under my hood. He recommends one range colder @.035" I'm using Accel Packs.

 

[BC]

I am running .050 with the GMS coils with no problems. 400 rwhp 410 rwtq.