The Ford Barn - View Single Post - Where to get a Bill Stipe distributor cam

Tom Wesenberg · 12-19-2016, 09:44 PM

The dwell time on the B cam is about 10 degrees more than the stock A cam, and this allows the coil to build a stronger magnetic field at higher speeds. Stronger magnetic field means a hotter spark. I can't believe it would be twice as hot a spark, unless that was at the extreme top RPM range, which most of us never approach.

12-19-2016, 09:44 PM	#7
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Where to get a Bill Stipe distributor cam The dwell time on the B cam is about 10 degrees more than the stock A cam, and this allows the coil to build a stronger magnetic field at higher speeds. Stronger magnetic field means a hotter spark. I can't believe it would be twice as hot a spark, unless that was at the extreme top RPM range, which most of us never approach.