Spiderman.
Ditto to what Twisted6 said. I have
similar to the combo you have. Keep in mind that the 292 never produced 175 real HP in stock form. About 110-120 true net HP is about as good as it got. Especially after '71.
So you're looking for an increase of about 67% over stock. Quite hefty. I have the Offenhauser intake, Edelbrock 500 cfm 4 barrel, HEI ignition, headers, a mild Elgin cam and a .060 overbore on my 292. I guesstimate about 170-180 real HP. If I had to do over again I would install LPG pistons to bump up the compression ratio. Probably a 10-15 HP increase just on compression alone.
The only way to get the 292 to turn impressive HP numbers without nitrous, turbo or supercharging is to turn high rpms. (6000-7000 or more). HP in that range from a 292 don't come cheap!
-magic mike-
