spark plugs questions

[mtz956]

i have a 98gtp need to change sparkplugs dont know with wat to go.
my last ones i had was the iridium ngk, but i had a bbv issue so didnt feel any preformance. any suggestion?

 

[CTKGP09]

if you are modded go with autolite copper plugs of the appropriate heat range

if you are sock another set of the stock plugs will do just fine and last alot longer

 

[mtz956]

acdelco iridium or platnium?

 

[blueguy]

Well...is your car stock?

If so...Autolite 606's gapped at .055".

 

[mtz956]

al 606 r better than ngk iridium? i have cold air intake, :th_skull:

 

[CTKGP09]

for a GTP you want autolites...simple as that

 

[matt5112]

iridium is fine for an engine that takes well to those plugs.

These ones love copper plugs for some reason.