im putting 1.94/1.60 valves on my gt40ps...i think im gonna have ptv clearance issues...what do you guys think...if it becomes an issue what can i do to solve it??
Mine have 1.90/1.54 valves and with my stock cam I have .139"I/.149"E, so you may not have a problem. I'd say you have to clay it or do the drop valve test to know for sure.