[turnpike boy]

In a word - momentum.

Kinda think that Windsor builders have gone to the very prevalent, very Typical Heads out there - AFR, Edelbrock, TFS, etc. - simply because they are a known commodity. CHI is a new kid on the block; just haven't really had the exposure the Typicals have. Clevors have been around for a looong time, but pretty much got knocked off the block by the advent of all the good aluminum heads.

CHI, being aluminum and excellent, may now see some intensifying interest. Ain't no way they will ever replace FE's, obviously, and for street cars they've got a tough row to hoe against damn good heads that cost 1/2 - 2/3 as much and come pretty close, output-wise. Race cars? - 'nother matter altogether.