Re: 67 GMC super custom build
That's the strangest spark plug I've ever seen...
All kidding aside, you've come up with a pretty neat way to accurately find TDC.
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Brian
1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod.
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