again 273 wanna hear your opinions ...

again i´m into throwing a 273 together (as my wife complained that the fish was to rude and not really driveable in normal traffic with the beefed up Magnum motor)
so decision were made the Magnum has to go and i will stick it into my Dodge D100 Truck next year.

so here are my plans i wanted to hear your opinions on that

this is given and it should stay as it is (money wise)

273 .040over
318 Heads with compcams Springs 901-16, bowl blended, opened intake runners to 340size, bit of portwork, polished chamber and polished exhaust runners.
Stock converter, 904er with shift kit, 3,91 rear with 26inch tall tires
600 cfm Holley with Vac.Sec.
longetube headers unrestricted mufflers 2,5inch dual exhaust

oil pan - windage tray:

standard oil pan + windage tray
deep 8quart pan without windage tray
or deep 8quart pan + windage tray

camshaft - 340 HPstock cam: should i go 4 degrees advanced or not ? think it could/would give me a bit more fun on the low end

intake: i do have an 360° offenhauser single plane and i also have a stock 340 4bbl-iron beast i would tend to use the offy, as it was on the motor when i bought the Barracuda years ago, but the runners are 318 size, which will be fine for the small motor (but the heads are allready opened up to match 340 gaskets, will it hurt too much using smaller intake on wider heads ? Guess the otherway around would create more turbolences ??)

thanks