Colder plug for higher boost level

thunderace31

thunderace31

New member
Ok on my GN's I have always run a R42TS AC Delco plug and just switched to the new super thin electrode plug (I think the NGK But not sure) anyway the stock plug heat rang is 2 steps colder than stock. Now If I want to run over 15psi of boost should I or could I run a colder plug?? also any help on a P/N would be great as our auto parts morons here (Dosnt mater if its orilly store as there still the same Murrays auto parts dumb A's) cant seem to get me what I want at all.
Thanks for your help
:tup:
 
syclownz

syclownz

New member
Re: Colder plug for higher boost level

most people run ngk ur5 plugs for stock heads and tr6 for vortec heads.(I think)
 
You must log in or register to reply here.
Top