Quote:
Originally Posted by 47fordv8
Have you had trouble w/ vacuum brake/ set-up? I have about 15"Hg but cant seem to get timing down pat. At WOT I have knock and low power. If I retard, no knock but even less power. I have tried setting crab at middle mark and adjusted brake w/ little effect. Crab was built by Bubbas. Currently running carbs sync'd.
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Might be worth the effort to mark the front pulley for TDC and several degree marks, then add a pointer and see where the timing really is. If 12v, all you need is a turn back timing light and a TDC mark and pointer.