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once you get the oil condition straightened out say 1000 miles a quart hopefully better but ??? -- than you can try one lighter spring in advance mech -- street BBC can stand 34 / 39 deg of timing -- i would have the dist re curved for full centrifugal -- most Chevy dist are set to run full port vacume but when you cam them the vacume becomes erratic and less at the motor speeds you need it high --- if you do it the guy will put 25 / 28 total in the HEI you than set the timing at say 10* ( 35* total @ 3200 rpm ) than with a dial back timing light you can bring the motor up to 3500 for a moment or so --- letting the advance swing all the way out and you have put 35* in the dial back timing light -- and at the TDC mark for zero --- will be your set point --- don't know if you know what i mean but you can always call me or e me --- and i have a guy i know who can do the dist in a speed shop buy me if you dont know someone -- i believe he gets 50 / 100 depends on shaft bushing and other stuff -- best deal is a new msd type --- we had in the last car we did BBC put the new digit timing bell and whistle unit in don't know if i like it ( YET ) jz
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