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 FeedsBobby Dodrill was unhurt after a violent crash in his four-wheel-drive ?Miss Misery? C10 during Battle For The Thrones at U.S. 60 Dragway.
The IHRA Spring Nationals put on one heck of a show despite challenging weather conditions. Here's a recap of all the action.
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The Southeast Gassers hit the track in Alabama for an epic event. Here's who brought home the hardware from Holiday Raceway.
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Fast door slammers are coming back to Santa Pod Raceway. Here's what you can expect at THE DOORSLAMMERS race.
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Master your charging system: calculate true idle amp draw, respect the 18,000 RPM limit, and ensure a perfect engine ground.
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Mickey Thompson Turn & Burn Delivered Big Drag-And-Drive Racing and Unique Adventures
Summit Motorsports Park hosted the inaugural Turn & Burn drag-and-drive. We've got the event recap that features all the winners.
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