heads sn94 94gt

I'm looking at a couple sets of heads for my 94 GT. I have a 94 Cobra Intake, Hooker Headers, 24 lb injectors, 70 BBK Throttle body & matching MAF. Will add a mild cam and a tuning chip, under drive pulley's, Off Road H-Pipe and Magnaflow Cat back. #1. Edelbrock Performer heads. They have 1.90...