Spark plugs

[dvernst]

sorry i'm sure this has been brought up a million times, but after searching I didn't find any results. What are the best plugs to run if i'm going to be running over 20 psi boost? Thanks

 

[turbojd]

I believe AC R42TS or Autolite 23's for over 20lbs. of boost

 

[cottonpicker14]

I would like to know too and what gap would be best for over 20 lbs of boost

 

[Grumpy]

AC 42 LTS !!!! 42TS's are for BUICKS !!! NOT TTAs !! gap them at .032 and leave them alone

 

[dvernst]

O.k. I was just wondering some people run colder plugs in the buicks and I didn't know if they were doing the same in the TTA'S

 

[Grumpy]

O.k. I was just wondering some people run colder plugs in the buicks and I didn't know if they were doing the same in the TTA'S

we went low 11s @121 with stock plugs .... it is a cooler plug than a stock Buick (44TS) :biggrin:

 

[83ttypecooled]

Plug heat and gap

Hi,
I pretty much agree, thanks Grumpy for your insight!