408 4x4 build

I got a 418" 4blt 340 base blk in a 85/93 dodge power ram crew cab for sale.... BEST of everything...
4spd, GV, D-60 hds, fnt & rear select lockers, trussed...
Tons of upgrades, practically brand new.. less than 500 on the motor
8500....

Or you can do what you're doing, port the heads some, a touch more cam, edel AG, go roller also, i use a ported angle milled 587 with a custom made quench piston for my build to sqz 9.8 with no issues whether there is nothing or 16k behind it..