recommended spark retard?
 

hey guys I need to know what kind of spark retard to run.... I plan on running 8psi w/fuel pump, fmu, fuel pressure regulator, 2 heat ranges colder plugs, and intercooled, need advice on how much retard or any other tuning tips thanks

Re:recommended spark retard?
 

Well that all depends. The obvious answer is retard until you have no more detonation. But I just threw my timing back prolly 4-5 degrees and called it a night.