Frankinvette84
Member
I know some of you have ported their crossfire intake and Ive seen most grind out the egr 'port " on the top side of the inside of the intake. What effect does this have on an engine (383 with aluminum heads 10:1 comp.) and does the ecm need to have a new programed chip ? another words should I do it or just port runners and leave egr intact? Thanks