Well I came up with the The number of turns head thread Test.
Basically there is a seat in the head for the wider portion of the plugs just above the threads to stop on. This seat, notch, ledge, whatever... read more

Mustang FeedsRick Ware Racing has acquired Jeff Lutz?s iconic Mad Max Camaro, with Lutz signed to a multiyear deal targeting major drag-and-drive events.
J.R. Todd and the DHL Funny Car team continue to produce consistent results on the track. The team is gearing up for another title run.
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The last thing a driver wants to do is become a passenger on a run. Check out this wild ride Luke Furr went for at Funny Car Chaos.
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The month of May was good to ProCharger racers. Here's a breakdown of the racers who scored wins with ProCharger power.
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Jonathan Allegrucci continues to dominate in Factory Stock Showdown. Allegrucci picked up his third straight victory at Thunder Valley.
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Recent Technical Articles
Pro Mod Veteran Shane Molinari Passes Away
Veteran racer Shane Molinari tragically lost his life following an on-track accident at Sonoma Raceway during the annual RaceWorz event.
NewsSource Today, 07:40 AM