fleetside,
The 292 you see in the picture above is as you want yours to be (.060 over - 301 cubic inches). If I had it do over again the only change I would make would be to bump the compression higher by using the liquid propane pistons - they give a 9:1 compression ratio to an otherwise stock 292. Because of the slight shaving of the head and large overbore I would probably have ended up 9.3-to-1 or a little more.
My engine is built for torque, but the cam and intake and carb upgrades puts the torque peak higher than stock. So it's a little sluggish off the clutch but really opens up about about 2500 rpms.
If you want really good power from your street 292, then in addition to what you already plan I'd do a very good port and polish of the head. I'd probably shave it a bit and recess the valves the same. And definitely wing-shape the intake bolt boss.
If you want high HP, then plan on higher rpms. That means balancing the stock crank, magnafluxing and balancing the stock rods, and lightweight flat top pistons. At this point you want to go with the Clifford water heated intake instead of the Offy.
-ftyler