definitely go custom grind route. And do you have the flow sheet for the heads? I'd say more lift, and its still very streetable. Heck, you have a manual, even better for the street. But whats the intent for the change and the car's real purpose.
Agree times a million. Flow numbers will go worlds for a custom grind. Look up Chris straub. Of straub technologies. He custom ground me a bullit cam for my 408. His predictions were spot on with my actual dyno results. He predicted 605 horsepower. It made 608. Needless to say im a customer for life.
