Thanks for the info Daz.

Have any of you successfully converted a lean-burn head to a full, hemispherical cc?

Also, any other 'good to know' info, as far as pro's and con's go for both a hemispherical setup and a lean burn (whether heart or D) in the respects to functionality. Seems if you remove the specific alluminum in a lean-burn head to make it a full hemisphere, it would nolonger limit the force applied to the piston and flow considerably more.. I imagine this will open a lot of doors for us.

Thanks goes to you guys over there 10fold.

Brad