It's really hard to tell W/O seeing/hearing it. There sould be a major 'speed up', forcing you to reset the idle speed.
You may be 'a tooth off' (dist) somehow. Get #1 @ TDC & double check it & the position of the distributor.
Let it warm up @ idle & check/adjust the valves which will eliminate that too.
Do NOT try to drive with it this way.
