Also known as the misnomer stumbles off idle .
@ idle , connect a vacuum gauge (cheapo fuel pump tester) to manifold vacuum ~ it *should* be 18" ~ 21" and be _steady_ if it varies or drifts up and down, there's a vacuum leak you must fix .
If it jitters , bad valves or improper timing , gaps too close on the spark plugs .
As in any engine you must do the basics or you'll wind up chasing your tail .
Stop worrying about the blue smoke ntil it starts easily and runs smoothly and has good pep, minor missing under load due to excesive oil buring , no worries , you'll fix that later .
You DO NOT need expen$ive tools here ! just a dwell tachometer and an inductive strobeoscopic timng light .
Under $100 at ay pwn shop or swap meet . DO NOT pay for used tuneup tools until -you- personlly hook them up and test them .
Thanks will follow your suggestions.
Ron