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 FeedsJFR has plenty to race for at Brainerd. Each of the team drivers are pushing towards titles and good starting spots in the Countdown.
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The HEMI Challenge is celebrating its 25th anniversary at the U.S. Nationals. These event features the iconic SS/AH HEMI each year.
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Adjustable timing sets are a must-have item for any performance engine. Here are some tips to help you set yours up the right way.
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Team Kalitta wants to lock down egular season titles in Top Fuel and Funny Car at Brainerd . Here's how the team plans to get it done.
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If you like Pro Mod racing you'll want to check out the Doubleheader Smackdown. The MWDRS is bringing the action to Flying H.
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Recent Technical Articles
Ron Capps Leads Funny Car Points As RCM Heads To Brainerd
Ron Capps is ready to grow his points lead this weekend at Brainerd. Maddi Gordon wants to pick up more experience this weekend.
NewsSource Yesterday, 10:43 AMMore...