Stockish 340 upgrades, cam needed

I'm coming in at 9.8:1. I've been unable to find how much to mill the SM heads to decrease chamber the volume 1 cc, but milling the chambers to close to a 61-1/2 cc volume would yield 10.2:1. Providing all the sharp edges are smoothed out that's a pretty safe number even for 91 octane premium fuel with the .038 quench in play. It still would be good to see some timing events for the proposed cam to check the DCR out before adjusting it though. The Lobe number on the Howards 267-220 @ .05- .506 cam is HM2203372A 267 244 220 140 0.337
[email protected] / [email protected] / 220 @ .050 / and 140 @ .200, hope this may help with determining who grinds these so we can get some opening and closing events.