Free cam build...

But if you just put some 273 heads on that sucker it'll be plenty streetable.
Restrictor plate style.

That's what i would do. The original engine combo i had when i bought the car had a set of cleaned up 302's with a 1.84 valve and a 320 adv 256 @ 0.050 490 108 lift solid cam. That incarnation ran the hardest of all the combos Ive tried. The torque through out the entire rev range was incredible.

Its really cheap too......