318 Build suggestions

I've been debating on building another 318 for my 73 valiant. My current setup is a 74 block STD bore, stock heads with a Hughes Whiplash 318 cam with an Eddy Airgap RPM intake topped with a performer 600CFM. Ignition is stock plugs with a Pertronix electronic distributor.
Transmission is a fresh rebuilt 904 with B&M shift kit stock converter. Rear end is fresh rebuilt 8 1/4 with open 3.55 gears.

Now don't get me wrong I love the idle of the whiplash cam, and it is defiantly a whole different engine since I changed out the 7 1/4 that had 2.76 gears to 3.55's.

My biggest regret was not doing some port work, or gasket matching the stock Iron heads to the eddy manifold. But i've also thought about aluminum heads but don't really need 2.02 valves since this car wont see 5000-6000 RPM, I still want this to be streetable with the occasional local weekend 1/8th mile.

Indy made their indy X heads which came with 1.92 intake valves and were newly casted heads, but after talking with them they are looking for a new vender to make them for them again so they don't for see them for 8-10 months.

Looking to see what people suggest for a good set of heads new? or doing work to stock heads? Also what about cam specs? any suggestions?

I wanted a 340 but after watching UTG's video the other day about the 318 I would really like to take my time and try to build a good performing 318, without breaking the bank on a stroker kit or spending tons of money on over priced 340's (as much as I would love to get my hands one one.)

1974 [ 318 ] good foundation to start with I weighed one of my 74 blocks against a 1985 [ 318 ] block and the 74 model weighed 10 pounds more who would have ever thought that much weight could be sacrificed.