On Tue, 08 Jul 2008 00:32:34 -0400, Ned Simmons
wrote:



The traditional way to adjust the timing and dwell of a cam is to use
a pair of plate cams sandwiched together by a clamping hub.

I should have mentioned, if it's not obvious, the dwell is adjusted by
changing the overlap of the plate cams. The cams are usually identical
so you get a 2:1 adjustment in dwell.

--
Ned Simmons