340 Engine Shake
UPDATE:
Verified with a mechanical guage and oil pressure is rock solid at 70 psi. Emailed Speedhut for testing instructions, they provided a great write up on the Guages and sender testing.
The shake is still there, but not as consistent now. The shop owner wonders if the system is learning the new setup (cam and heads).
The shop is going to go through the tune and check a few more things. More to come.