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Need HEI and timing help

1K views 8 replies 7 participants last post by  novaderrik 
There are a lot of hei configurations out there.Most need around 12-14 degs. initial toget proper total of 34 or so. the proper vacuum advance is important, many have to much adv. and come in to early.One for alate 70's L82 vette works well .Use of man. vacuum to the adv. should help your idle.Check voltage while running at the plug. Should be 14-15 volts.
 
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