You dont have to spin a BB very high to make great power...Nice, huh!!?? I would think the .080 is fine for clearance on the intake...and remember, the lift doesnt have as much to do with P/V clearance as does the duration and LSA. Im glad Pat agrees with the bearings too...Mine runs pretty much the same clearances, and I have a stock pump with the hi perf. spring in it, and I have no problems with oiling at all. You will be fine. Sounds like you're on your way with this big block. John