Thanks CNC Dude for the reply. Possible cracks and not having to put in new seats is why I will stick with the 1.5 ex valve size. Going bigger on the Intake valve only, 1.84 to avoid problems with breaking into water and possible Intake seat cracks. The plan for the head is a extreamly close inspection by me then a pressure test and mag test. If it passes all that then bigger Intakes and at least a small cut to flatten the surface. Will back cut the Intakes and front cut the exhausts. I am afraid to even cut the seats any extra angles for fear of cracks. Jay
