[scottj]

If you are running the AFR race ready heads with the standard springs they are 225# on the seat. But, those springs are very cheap, low quality, offshore items that go away quickly compared to hi quality springs. I broke an AFR inner spring at a track day and lost 500 rpm instantly. Had I broke an outer spring I would have lost a motor. Seat pressure was good before the event. IMO, when running a solid roller on the street, afford the best springs you can run.