I've had it for a while, but it's a little slow with a 318 Poly. I did buy a 4bbl intake for it, but not sure if I'm even going to keep that engine in it now.
Dana 70 front, 80 rear, 4.88's.
What tranny?
4.88 are real slow no matter what motor.
Poly needs more in and out, so throw a 4bbl on it, nice set of duels, it will never rev high, but it is a truck. Torgue rules.
My 134 flat head in my 48 willys with 5.38 rears does not have any top speed but pulls like hell from 400 rpm idle to 3200.