Thanks for the help guys. It is easier to find high rpm info. Rick the chart is a big help.
Since the 292 was available in trucks from 1/2 ton to 2 ton with standard and auto transmissions I'm sure concessions were made on a one size fits all cam and valve train. As long as I'm building on I'd want to maximize the truck side. Sometime the low rpm cams also give better milage as well. It looks like the stock cams works hard and the bottom end but 292s are notorious gas guzzlers. A lot of that could be gearing.
