360 cam ???

The 3.23's and the 245/60/15 (26+ inches) will be a nice performer with the right cam. The 2.02 J's and the factory 340 intake can be strong performers for the street. I myself would use them all together and look at a cam under 230*'s @ .050 duration just under .500 lift.
This would require a decent stall converter but nothing to crazy.

Now, are the heads ported?
Using headers?
Hyd., solid cam in mind?

Oh, the Thumper cam is so named and designed to "THUMP" when at idle. Performance wise, I do not know.