Originally Posted By an8sec70cuda
Originally Posted By maxi426
If carburated check float levels, or rear jets getting uncovered. If EFI and stock tank, possibly fuel pickup in tank getting uncovered?

iagree Sounds like a fuel delivery issue to me.
hi ! im Race with Old 496 Combo from 10 years ... never problem .. 9.2@150 ... with new 572 .. the ET drop to 9.6 9.8 with this problem

1970 Cuda 496 street driven 9.22@150
1971 Demon 572 7.82@176
1957 Desoto Adventurer Convertible 345 Hemi
1958 Plymouth Fury Christine
2008 Dodge Ram 1500 Hemi
1970 Dodge ChallengerRT 6pack 4 speed 1 of 135
1968 Dodge Charger RT 4 speed