Echlin #VC-1810 advance can or equilivant
hey kendog
I'm going to repost here
This is from the '67 Plymouth Shop manual. You can ignore the CAP timing.
Initial timing of 12.5*BTDC was for everyday use in most conditions. Techs were expected to adjust slightly for local fuel, elevation, etc.
This table from the DC instructions is for their electronic distributor which I think they assumed won't advance much above 3000 rpm. In all cases they couldn't know what the idle timing requirements would be for different hot rods, so they spec'd the 2800 rpm timing and let the rest of the timing end up wherever it ended up.
Anything that decreases burn time such as increased the compression will reduce timing needs.
Works both ways. So a cam with a lot of overlap will kill effective compression at ilde speeds, ergo more initial needed.
hey kendog
I'm going to repost here
This is from the '67 Plymouth Shop manual. You can ignore the CAP timing.
Initial timing of 12.5*BTDC was for everyday use in most conditions. Techs were expected to adjust slightly for local fuel, elevation, etc.
This table from the DC instructions is for their electronic distributor which I think they assumed won't advance much above 3000 rpm. In all cases they couldn't know what the idle timing requirements would be for different hot rods, so they spec'd the 2800 rpm timing and let the rest of the timing end up wherever it ended up.
Anything that decreases burn time such as increased the compression will reduce timing needs.
Works both ways. So a cam with a lot of overlap will kill effective compression at ilde speeds, ergo more initial needed.
