318 Build Combo Critique

I picked up a 318 block last weekend that I want to build for the Duster. I wanted to build a hot little 318. Duster is a 4 speed manual car, manual brakes, manual steering, rear end is a 3.23 right now would like to put something like a 3.73 in it.

Block is a mid to late 70s block.
Block bored 0.020" over as long as the bores will clean up
Pistons; KB-167-020 (compression height 1.810"; +5cc piston head volume)
Head gasket: C5633-030 (4.040" bore, 0.030" compressed thickness)
Deck the block to a true 9.60" height
Stock Magnum cylinder heads (60cc chamber), mild port work, stock size valves
should have a quench height of 0.042"
compression ratio of 9.9:1
Stock magnum rods lightened
Stock 318 cast crank
Edelbrock Performer RPM Air-Gap
aluminum roller tipped rocker arms 1.6 ratio
1 & 5/8" long tube header summit brand
Comp cams XE (20-223-3) 268/280 adv; 224/[email protected]"; 110 LSA; 0.509"I/0.512"E Lift with 1.6 rockers
Stock Mopar windage tray
Holley 670cfm carb

I think it will be a mean little 318