Anyone here running FR3LS Delco spark plugs?
Member
Joined: Jul 1999
Posts: 163
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From: Bend, Oregon
Car: 89 IROC
Engine: Built 383, Vortech SC
Transmission: Pro-Built 700R4
Axle/Gears: Dana 44, True Trac, 3.54
Ive been using them. Work just fine. One of the plugs TF recommends with their 23 deg. aluminum heads. I also run a Vortech SC and extensive mods and have had no problems with those plugs.
Joined: Oct 2000
Posts: 2,112
Likes: 0
From: Orange County,NY
Car: 1982 Z28
Engine: 355
Transmission: T56
Axle/Gears: 12 Bolt
FR3LS has been discontinued...it is now 41-602.Thanks to badgta for that info.I run the Fr3LS with my AFR's.Not too cold at all,but thats depending on the motor.
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