Man, how do you guys get the tester to hook up on the outboard cylinders?
My tester adapters seem too long to get under manifolds. Also hard to get started in plug hole. Almost mad me cry

because I didn't want to give up! Be nice if there was a short adapter to screw in with a 90* angle to it.
Got all tested but #3 and #5
What's the trick?
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1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL
RETRO BOATS ARE COOL
If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.