[Joe DeMarzo]

The 69 & 70 combo 350/250 is rated at 230, the 72 350 is also rated at 230 but the carb is smaller on the 72 vs the 69 & 70. If you want to run the 2 barrel you should build the 69 or 70 due to carb size. We may run the 2 barrel with a '70 combo in the fall.

The other difference is the 72 combo runs a dish piston as oppossed to flat with notch piston in 69 & 70. The valve, lift are basically the same in all years. I run the 72 because of my idol Johnny Gray, his nova set the standard for the 71 & 72 combo's.

Also the 71 & 72 camaro is the same combination for HP family (I think). Bruce Noland had a very fast 72 camaro before he build the vette.

Hope it helps.