All I can tell you is I went to adjust the valves and found 3 adjuster screws in the cam valley. The problem was 4 were missing. I dropped the oil pan, fished around in the cam chain valley and never found the screw. Piston #3 sure looks like it was bouncing around and imbedded it in the top of the piston. Anyway... the damn thing is too slow. I'm collecting the parts to put a 10 bottle and monster jets and see how fast I can go before it goes boom.I think the frame is good for 8.50s. Turning down launch rpm so I don't spin the tire. The previous owner said he got 1.12 60 foots out of this with 250 horse power. He has told me a couple fibs before...But a nice guy.
Curt