I bought my car with the motor work already done. I'm not too fond of the cam that's in it though, as it likes to rev higher than I do. I was wondering what kind of lift I can get by with using the 1.72 RR. The motor has Scat forged 306 pistons in it at 9.5:1 cr. Not sure on the specific of the valve reliefs, so better safe than sorry. Also it would be off the shelf, since I plan on doing a Windsor when I get out of school.