I would go no smaller than the OF grind and install it at 109-110ICL. Same basic combo I have, mine is closer to 11.3 to 1 compression and using the OF cam on a 112LSA. It's been flawless now since 2009 on a steady diet of pump gas, even runs OK on 87 octane w/o pinging but it will "run-on" once in a while on a really hot summer day fully heat soaked so I typically keep 91-93 octane in it. The ICL came in at 109.5 so I just left it there and glad I did. Idles nearly dead smooth with just a hint or "attitude". Makes 13.5" vacuum at 700rpm's with only 10 degrees initial timing.
Compression is your friend with these things and allows for bigger cams with less negatives. However a small cam and high compression can get you into trouble in a hurry and little cams aren't going to take advantage of 310cfm head flow either......FWIW......Cliff
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https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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