Don, you know how I have been fighting the "inconsistancies" with my car.
I have narrowed it down if not solved the issues. When I went to the track yesterday. I didn't make a run until probably 45 minutes after I got there. I filled out all my paper work, got something to eat (fat boys have to eat before drag racing) and watched a few cars run (first time I had been to this track Texas Speedway in Kennedale, Tx.) . My first run was against a little fox body gt. After I waw that I was beating pretty badly (right before the et cones) I just let completely off the throttle and still ran an 8.51, I went right back around anthe the next pass I ran WOT all the through and ran an 8.60.

hmmmm cool car, run fast, hot car not run so fast. Just before I left I made a pass and this was after the car had been setting for and hour. This is when I ran my best ever (8.41). I know you cut the bottom out of your Shaker, but since heat has such a drastic affect on my car, I am thinking about going to the Cobra type heat evacuator (I guess that what you call them) hood, or some type of vented hood. my concern with cutting the bottom out of the shake is all the road grime that would be blown on to the motor it self. What do you think about maybe putting some type of filter over the opening, something that would flow like maybe a stocking.