For the W5 lovers

273 said
Most 318 guy's are cheap.

If speedmaster sold a version of their heads with a chamber size that got 9:1 with stock lowest cr 318 short block, might be a seller to the 318 crowd. But you could just mill there heads an slap them on anyways.

exactly this.

if TF or eddy or whoever came out with a pair of heads like that they'd be 2K and nobody would buy them.

and knowing them, they'd take some wack rocker gear and you'd have to cough up for that too!