I have a 468 runnin in the 3000- 6500 range, 10.2 compression. I want to spray a 150 shot, what would be the proper plug to run with spray. I asked the edelbrock tech line, but they didn't know. any input would be much appreciated, i would like to run a champion plug. thanks.
Ed

 

Pep Boys had a cross reference that I was able to use to determine a plug that was two stages colder than stock. I would suggest going in and asking them to look up what plug is a little colder than the one you are using NA.

 

id love to hear some suggestions on this for the lt1 also. i have no idea what plugs to run on a 150 shot. thanks

 

i would suggest the ngk plugs for nitrous use

i also have a 468 on spray

and have very good luck with the ngk ur5 series or similar
go to advanced auto or autozone and ask to look at there ngk book and look whats stock and go with something colder(also i would recommend finding a plug with a shorter ground strap too.

if you cant find anything let me know and ill look at my book at home.

i wil also find the plugs i was using i n my lt1 car and post them (i cant remeber off hand.)

jimbo

 

Use the NGR tr6 plugs. They are in a colder heat range and have a smaller gap (.035")

 

Sorry for the typo... that would be NGK tr6 not NGR

 

dont use platinum plugs. thats a no no!!