Hmmm, w/456 gears I would think WOT shifts in 4th would happen all the time. Unless you did not like to floor it?

On my Syclone, I need to shift into 4th gear in the 1/4 mile, the trans does not like it (700R4) all stock with 3.42 gears & 26" tire.

MBHD


12 port SDS EFI