john, on your 383 in your dart,where your pistons down in the hole? i hear alot of folks talking about poor compression ratio on these motors in factory form. i have 3 complete 383 magnums here(2 are from 2 different 69 roadrunners/ 1 from a 70 super bee) all were very low mile cars,untouched,all stock,and all 3 of them have the stock flat pistons in them and are zero deck.
just curious how much variation there could be.