I have a 91 mustang with factory heads, block, with a gt40 tubular intake, shorty headers and full exhaust. It's an Aod car with shift kit and 3.73. Would this be a good cam? Should I get gt40 heads? If so what upgrades will they need?
The E303 cam is a very popular cam for cars with your modifications It provides a decent power increase, good driveability characteristics and an awesome sound.. The addition of GT-40 heads would also give you another boost in performance as well but shouldn't need any additional modifications for your application..