I picked up a 1979 ram air III 400 for 200 bucks last summer front right two cylinders are rusted and it's stuck, but the block is good and the heads are good, I'm had the cylinders soaking with marvel mystery oil and can o croil for a few months now, I bought my 68 350 for 275 bucks, was a 265 hp motor out of a 68 bird, it was rebuilt by the original owner, 068 cam now and a 4 brl intake, I did all new gaskets oil pump fuel pump water pump edelbrock intake and demon 650 carb with hei ignition she fired right up third crank on the stand!!! If you take your time look around and make some good contacts you can find parts pretty reasonable. I buying two more 400's off the same guy I got my ram air III from for the same price I got it for figure it would be a good investment for myself and possibly to make a lil cash back