Guest V8Z Posted October 4, 2006 Share Posted October 4, 2006 My Chevy manual says 4* BTDC, that seems alittle low? Stock 350 bottom end, HEI, fastburn heads, comp cam .469/.464, eldelbrock air gap intake, holley 670 cfm carb. Would 8 to 10 at idel with vac. disconnected seem right? And idel should be 750-800 RPM? Thanks Quote Link to comment Share on other sites More sharing options...
Guest coppergmc Posted October 4, 2006 Share Posted October 4, 2006 12 to 14 degrees should do it. You might want to get an adjustable vacuum advance canister and an advance kit to taylor your setup. Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted October 4, 2006 Share Posted October 4, 2006 I'll bet that's a healthy 4.3L! Quote Link to comment Share on other sites More sharing options...
Guest V8Z Posted October 4, 2006 Share Posted October 4, 2006 Yup! very healthy 4.3 LOL! Quote Link to comment Share on other sites More sharing options...
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