Which heads are best

The kit I was looking at was from Mancini racing and here is what it says
340 - 408 CID FORGED CRANKSHAFT STROKER KIT
Balanced rotating assembly

Internally balanced

Dished Forged Diamond Pistons 9.5:1 with 65cc heads

Eagle 4340 forged crankshaft

Eagle H-Beam rods

Clevite Tri-Metal rod and main bearing set

Diamond file fit 1/16-1/16-3/16 Moly ring set
Price is $1950
I have a set of Headman Hustler W2 headers for an A body brand new with all the plates and gaskets. Intakes for W2's tend to be cheap because there is not that big a demand. Ive found Strip Dominators at swap meets for $60. I also have a Mopar Race tach drive electronic distributor in the garage and who knows what else, still digging through 40 years of crap out here