Just got off the phone with a guy at trick flow.
With trick flow roller springs( made by pac) that are 240/600, up to 700 gross lift, good valves, titanium retainers, valve job, cnc ported and fully assembled, they will sell for 1100 each
2200 bucks for bolt on heads seems like a great deal to me.
With zero deck flat tops and those 60cc heads should be 12.7 ish compression on my 418.
3300 pound car with a 904 i see no reason shouldnt run low tens with the 259/267 Howards roller i want to try.
Thoughts?