Just a short update:
I sent the head of to be flow tested and here are the results:
Lift is from 2mm to 12mm, flow is in CFM@10"
Stock
Removal of casting flash, minor bowl blend, lightly profiled guides:
Comparison of before and after the minor tidy up:
At 13mm of lift (.325 L/D) it flows 99.1cfm@10", if I'm right that's about 156cfm@28".
Considering the valve won't be lifted much higher than 12mm, do you think a three angled valve job would help or hinder flow?