we need to know what the best plug whould be for booster02s mustang whould be
fully forged 5.0 stroker mod motor,stage 2 heads and blower cam with around 8psi of boost!
go with the tuner guy he is a really good sct tuner!!!!
i am on my way now out to Rochester to have him tune my mach1 with the live wire!!!!!!!!!!
i had him tune my 88 gt it made the biggest difference !!!!