My RPM hand jumps up as I'm driving engine surging why?
Either transmission is slipping or engine has an intermittent misfire issue. Also, slight chance your a/c compressor could be cycling quickly if the charge is low
...also, could be something fuel related such as a bad oxygen sensor, fuel filter, or MAP sensor. Is your check engine light on?
vacuum control leaking, replace butyl rubber hoses with silicone from Summit racing~
Worn out TPS would be my second thought if passing an unlit propane torch to find leaks didn't find any~
I'd suggest a vacuum advance mechanism on your distributor, but you've neither with this one~
Could it be the transmission torque converter lock cycling?