Mr p's car doesn't weigh anything so that is a big factor in hurting anything. 2200-2300 pounds.
I ran 10.30's with a stock 340 block at 3450 pounds. Block had no issues. Cast stroker crank finally gave up the ghost. Arp studded, otherwise stock 30 over block 426 combo. I think a good 340 block is fine to tickle high 9's with at typical A body weight. Any more than that your pushing your luck
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
