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Old 09-13-2020, 10:19 AM
wbnapier wbnapier is offline
Chief Ponti-yacker
 
Join Date: Sep 2017
Location: Encinitas, CA
Posts: 590
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Quote:
Originally Posted by hgiv View Post
But how does that account for the plugs? Not one but 3!
That's a real mystery. No idea. I gapped them and then verified the gap on all 8 before install. For the record, my experience is that most plugs have some gap out of the box too. Therefore, I was either sleepwalking one night and closed the gap or something weird happened. Attached are photos. The color difference must be from lack of combustion / proper ignition???
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1965 Pontiac GTO
455/469 w/ #48 Heads, '65 Tri-Power
9.25:1 CR
Stump Puller Cam
Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00
3.55 Rear Differential
Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"