Another update. I mounted the Glowshift digital tach in my LeMans and love it.
So I ordered one for my GTO to replace the non functional mini tach that’s in there. I got it installed and it was reading about double the actual RPM. I talked to Glowshift tech and they recommended an electronic “filter” be wired in. Not that expensive, about $9, but of course had to wait for it to arrive. I installed it and absolutely no change. It still reads double the RPM. Apparently this tach doesn’t like breaker point ignition, which my GTO has. Now shipping back for a refund. Works great on my LeMans with electronic ignition.
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‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears.
‘55 Catalina
‘62 Mercury Meteor-all original, bought new by my grandfather
71' GTO -original 400/4-speed/3.23 posi
13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride
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