Best Spark Plug to Run???

[Under Pressure]

A/C CR43TS gapped to .034"-.0345" up to 20 psi. boost.

Gap them at .032" for higher boost 20-27 psi. or so.

x2

 

[MIB]

NGK user here .

 

[National Newb]

Wow, thanks for the great response.... Looks like I will try the NGK's....New to the TR world.... Kirban listed those new e-3 plugs so i figured I'd check what really worked before just buying them...

I have tried alot of plugs in the past in my SBC.. bosch, ac, rapidfire, autolight, champion, splitfire...rapidfires worked the best for me w/ a 6al...


Thanks ALL!!!!

 

[TURBO 6]

Autolite 23's for me. I used to run UR5's but after the porcelain broke off the #1 plug and took out the piston, exhaust valve, and turbine wheel. The tune was safe too. No one I talked to could explain what happened.

 

[Squid4life]

x2

X3 CR43TS at about 32 IIRC

 

[TurboV]

i just installed the E3's from Kirban. Dont have to set them and the GN feels even smoother.
very pleased $32.00 plus shipp.

 

[t3intercooled]

Is it okay to run the UR5 in stock iron heads. When comparing autolite 24 delco CR43TS and UR5 the threads are the same but the shaft is longer

 

[turbojd]

I run the NGK UR 5's, no problems here and I have stock iron heads.