What will my 68 Dart 408 run in 1/4 mile?

I think there is a unit for sale right here in FABO and it had the 18 spline disc and a spare disc as well. Seems he had a pretty decent price on it as well.

Search through the for sale ads here. I don't think it sold yet.

That's the clutch you want.
the one that's almost $2,000 bucks?? I'm sure it's an excellent drag racing clutch, but can that thing be used on the street, and for how long? As for adjusting that thing, I wouldn't even know where to start. lol. That's definitely above my pay grade.