Re: TD 366 timing
need to do a little work on a sheet of paper, find out how much advance your vacuum can is worth if its not adjustable. i would find out what a bbc likes in total advance at cruise.
initial+vacuum+mechanical....on a sbc they tend to not like anymore than 50-52.
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1999 GMC Suburban K2500 SLT, 454/4L80E
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E
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