[ QUOTE ]
Bill, If you have your AC number they can cross reference that on the computers (I work PT at Advance) and that will give you some NGK numbers. Believe it or not we still have books and catalogs behind the counters but alot of the newer/younger employees haven't been introduced to them. If you can get one of the guys/gals to pull the spark plug catalogs, they have lot of information about heat ranges and numbering systems. I sell a lot of plugs to racers, they buy several heat ranges and try different brands. I even go through boxes of plugs with one guy while he finds the ones that index the best for him. he is nuts.... But very fast... I will be at work tomorrow, PM me with some numbers and I will look up some stuff for you. I stock and can order the Autolite racing plugs if anyone needs them too.
Tommy (believer in the catalogs)
[/ QUOTE ]
Exactly. I've been working at Advance PT since '01, primarily to get discounts. The concept of a catalogs are vague to 80% of the people that work in the store. The only people that really use them are me, and the store manager. I have no clue why parts places hire people who have computer skills but no part/car knowledge. On old vehicles 90% of the parts aren't going to be on the computer. For those of you who don't know, advance has an interactive website with a full catalog system that is really easy to use to help you find parts. Most parts have images as well. Typically you can find more parts for your car online than the people can in the store. Find the part # you need online, then take it to the store with you and have them order it, or get it off the shelf. It takes all of the guess work out of it, and you get the right part the first time.
NGK's are good plugs, like everyone has previously stated. I ran champions and autolites in my built 340 thats in my cuda and after 3 or 4 trips around the block, it would be skipping or missing. I put a set of NGKs in it about 4 months ago and have been trouble free since then. Colder plugs really helped my motor out.