High 7's in the 1/8..how much weight and power??

Very close. 450 h.p. @ 3400 lbs should put you right in the ball park if you don't spin and the car will 60 foot in the 1.8 neighborhood.

Yep, I done it with one of my own cars in the past (non-mopar combo but equivalent in weight and power), but right now a friend's street '69 Cuda does pretty much that with a 408 running W2 econo heads with around 450 horse. Runs 11.9 at 115mph with 3.45 gears.