I would look at increasing the jetting at the track in the 1/4 mile until the MPH slows down, if you can't jet it rich enough to do that you don't have enough fuel delivery, volume Test, test and test some more until your happy
Thanks Cab,my O/2 recordings are making me crazy!! The plugs tell me I'm good or even a little phat.....
HEMI-ITIS has no cure. My condition is fully BLOWN!!