Need help with 383 setup

I use the high volume oil pump that's how I found the problem with the windage tray. The 906 heads should get you the 2.14" intake and 1.81" exhaust valves but if I was going to do this again (and I probably will) I'd just go buy the Stage 5 cast iron head assemblies from Mopar. I ran a gear drive cam on a 440 Super Bee sometime ago and the only thing it got me was a head ache from the wine, sounds like a mini blower under the hood. Dual roller chain is just fine. I've only ever used the high voltage ignition and distributor from mopar with the orange box and have never had a problem which includes 3 440"s and 2 383"s. As far as the bore goes, what shape are the cylinders in such as taper and scoring. The 3.55 gear is good if you plan on mostly cruising but I consider the 3.91 a better all around gear, just make sure that you use nothing smaller that the 8 3/4 rear end.
What it really comes down to are 2 things. How much do you want to spend and are you building this for street/strip.