OldskoolRcr

iTrader: (4)

99 camaro alum 6.0 block, L92 heads (402) all the supporting internal parts, pump gas motor, HSW Brute force wet kit, set up for 100 then going to 150. Which plugs have you had the best luck with, I though about going with TR7's?

OldskoolRcr

iTrader: (4)

Another question, what is the differance between the NGK TR6 and the NGK TR66

Black8Banger

iTrader: (9)

Im also interested in this. I assume you are running TR6s now for NA? I would think TR7 would be needed for spray on a 402/408.

streetassasin

iTrader: (30)

how much are TR7's compared to TR6's?

OldskoolRcr

iTrader: (4)

I spoke with Matt@HSW today he recomends TR6 .035-.038 for my application.

Bill Bowling

iTrader: (6)

I am using TR6's.

Bill

MeanWS6

Be a man, Go with TR8's - I noticed no diff N/A

TheBlurLS1

iTrader: (8)

I just paid $17 for 10 TR7's, TR6's are about the same price.