Cleveland parts are expensive, you can get the same power out of a Windsor for equal money (but more parts). Then there's the Clevor. C heads on a W. Probably just as pricey, though.
The C is a peaky engine, where the W pulls strong all the way, just not as much top end. Had 'em both, much prefer the Windsor, but I'm talking street engines. Gave up racing years ago, ran a 302 Fairlane stock car.