Helping my son (same name) on his 383 build, and have question
on all in timing. Cam lift is 645 and using MSD everything. We were
shooting for 36 deg all in timing at 3000 rpms. Here is what we got.

Car wants to idle best at about 1800 rpm and we get 12 deg.
At 3000 RPM it goes to 22 deg
At 3500 RPM goes to 25 deg
At 4000 RPM goes to 30 deg
at 4500 RPM goes to 32 deg

Car starts good, revs good & cools good. We changed bushing
in dist with no change. We are currently running a silver and
blue spring in dizzy as well as the blue bushing.

What are your recommendations on getting 36 deg all in timing, or
are we ok where we sit. Thanks