[olddog]

The Boss 429 was a semi hemi. The small flat spots on two sides gave a squish effect for better mixing. (Excalibur should be salivating right now).

The engine was designed too late in the muscle car years and had the plug pulled. If it had had the years of full racing support that the FE enjoyed, it would likely have evolved into the best muscle engine ever made. That said, if a frog had wings, its ass wouldn't hit the ground.