Remember this Moparts thread from years ago.
Look at Dave Dudek’s comment, among others

https://board.moparts.org/ubbthread...w-much-hp-will-3-8-fuel-line-handle.html

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17