Q: What about upgrading heads on the Evo’s and TC88s?

All factory heads are designed to meet emission standards.  So they are not the best choice when trying to get the power you crave.  Your heads can be ported at Strokers or just replaced with our exchange performance heads.  You will get a lot more performance out of an engine with  performance heads. With the right combination of parts, you"ll be looking at about 30% more torque and horse power.