Something In my #5 Cylinder?

Walker434 said

These are CP Carrillo forged Boost spec pistons. Was running 27* of timing during drag week. When I saw signs of detonation I dropped that back to 23*. It seems very happy at 23*. I think I was also running too hot of plugs? During drag week I ran NGK BKRE6-11 plugs which is a 6 heat range. I have since dropped back to a 7 heat range NGK... should I go colder when it all goes back together?

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How much boost? Even a 7 is pretty hot if you are going over 10 pounds.

IMO, when doing drag week or just driving around, you can use a pretty warm, extended tip plug. Just don't mash on it.

When you get to the track, don't use a projected nose plug. Even with the same heat number the tip gets too hot for boost.

I ordered a NO Good Kind plug catalog and the dilrods sent out a non automotive catalog. If I had the right book I'd look that plug up and see what it is exactly. I don't know my NGK numbers very well.