67 dart stroker hellcat gen3 hemi with twin turbos...

well after last weeks tnt wed night. i found what very well has been my.issue. i ordered a new valve spring kit with more seat and open pressure. as i tried to add boost my rpm limit dropped significantly. yet the car still ran similar ets even letting out hundred feet+ before the 1/8. i ran 6.10 @ 112mph 6700rpms gate spring 6psi
6.10@ 114mph 6500rpms 12psi
6.13@ 115mph 6300rpms 14.5psi
and a 6.23 @ 116.9mph died at 6100rpms 16psi
only pass i made it to the stripe was the first on gate springs.

hoping 45lbs on the seat and 125 ish open makes the difference. other wise its tnd rocker time and dual or triple springs and solid roller time.