Cam timing turned out to be
43/73, 296 dur., 105 c.l., 350 lift intake, vs. 27/73 stock
63/39, 282 dur., 102 c.l., 308 lift exhaust. vs. 70/30 stock
I still need to open up the slots on the cam gear so I can advance
the timing some more. That way the exhaust will be at 110° c.l.
like the stock setting. And the intake will be at 51/65, 97 c.l..
Which is 21° more overlap, 16° more dur., and the valve closing
5° sooner. Resulting in more cylinder pressure and better breathing
because of valve events and a 10.3/1 compression ratio.
It was time consuming to get equal cam profiles by hand. I only used
a die grinder a couple of times. Otherwise it was a file and emery cloth.
Typical procedure was to remove the rocker box, cam caps, chain, cam.
Remove some metal and reinstall everything. The check the degree
wheel pointer for t.d.c., then valve lash and set up the dial indicator.
.
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