I am building a 318 for my 72 Power Wagon short bed truck. I will be running 35" tires and 4.56 gears, and the NP 435 4 spd. trans. Heres is my current build so far, the shortblock-

1971 318 block bored .030" over
stock crank polished and balanced
340 floating rods
340 windage tray
Federal Mogul STL-285NP30 pistons, sitting at zero deck.
Crane powermax .454"/.480 lift cam.

I need help picking what heads and intake I should use? Thanks for any suggestions!

I have a set of #587 340/350 heads w/ 1.88 intake valves and gasket-match porting, these a freshly rebuilt with a 3-angle valve job. And I have a stock set of 318 #302 casting heads that need rebuilt.