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Spark Plugs
#1
I started pulling plugs on my new toy and note that it has E3.42 plugs. I know nothing of E3 plugs. Are they worth keeping/continue using? Are they compatible with a Mallory 6AL box? Engine is the original Q Code Cleveland rebuilt 5k miles ago with 9.5 CR, original heads with SS valves, Comp Cams 218*/218* @ .050" w/ .494" lift, Offenhauser 360 intake, Holley 750 DP (that I am swapping out for a QuickFuel 680 w/ vacuum secondaries) and Mallory Unilite distributor. What standard plug would you suggest if I decide to swap out the E3's? Thanks in advance.
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#2
Expensive plugs. I'd keep them is they look ok. If you were to replace them I'd look to some NGK's as the older go-to Autolite 25's quality has faltered since they started making them in Mexico and China.

Mike
__________________________________
Black 1985 GT
Yellow 1973 Mustang Mach 1
Black 2012 5.0 GT, 6-speed, Brembo brakes, 3.73's
Wimbledon White 1966 F-100 Shortbed Styleside, 390ci, Tremec 3550, FiTech EFI
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