Snowman, Ok, sounds like you have a chance to win. Your dads 408,,, was this a engine dyno or chassis dyno, what type or make?
What was actually done to his engine? Stock valves, stock heads? Any porting done? HP ratings from the factory back then is a bit different than what we use today.
With those numbers pending where they are taken from ,eng or rear wheels. ET could be as high as 17.0 seconds & as low as 14's in my guestimation.
Forgot weight of car, rear gears, tires he is going to use etc,auto trans, stall on torque converter,bring us up to date on the car again.
