as far as actual setting, set it where it "lites off"the best, & setup your ign curve around that. on the HEI, somewhere in the range of 8 to 12 BTDC seems to work pretty well.....the hotter the cam, the more initial timing the little chev's seem to like. If you havent recurved, Crane puts out a nice adjustable  vac advance can , with different springs for the mech curve(also very good instructions). Good luck,crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
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