To add to this discussion on Speedmaster valve job although I’m new to having this seat machine it makes things tricky. I already messed up a seat trying to fix their valve job and stick with a 2.02 valve and had to jump to a 2.055 valve to use the cutter I want to. Their angles are so big and the throat diameter is already on the large size for a 2.02 valve. I may set up the cutter differently and try one more on the next set I know I’m going with a 2.055 valve anyway but I think I’ll be forced to go about it with a different cutter. Although I can get a very nice set of heads with a 2.08 valve a 2.055 valve is about the prefect size for both customer budget and the work involved for the person hand porting a set of heads.
