Which spark plugs would you use on GN-1 or TA heads

[norbs]

I am planning to go back to the dyno , and want to put a new set of plugs in that would be good for about 32-33 lbs boost, not being to hot. I have the TA aluminum heads, but I'm sure the champion heads would use the same. Has anyone had good results with a certain plug at a certain boost?

thanks norb

 

[DR BOOST]

NGK tr6's worked well for me when i ran gn1s

 

[Clark6]

might better go back and ask t/a. my brother and i both have champions aluminums,, i have autolight 104s in mine he has autolite 23s or 24s in his??go figure??

 

[sixgun86gn]

I have autolite 23's in my TA heads.

 

[Nick Micale]

I have autolite 23's in my TA heads.

It will work better if you use a long reach plug in the TA heads, as that is how they were designed.

If boost is 30 psi or so, I would run a cold race plug like Autolite AR3932.

 

[norbs]

Thanks for the info, everyone.

 

[sixgun86gn]

It will work better if you use a long reach plug in the TA heads, as that is how they were designed.

If boost is 30 psi or so, I would run a cold race plug like Autolite AR3932.

Good to know,thanks for that one Nick.

 

[norbs]

I have a found a chart which might come in handy.

Racing Spark Plug Cross Reference Chart for Autolite, NGK, AC Delco and Champion