Timing a "unknown camed" engine....

..so what I did yesterday.... I set the timing@ idle to 10 deg... BTDC... then 24 deg. of advance.... so 34 deg. all in
now the engine was idling like crap.... ( of course )
so I hooked up the vac. canister to manifold Vacuum...that brings the timing up to 20 deg BTDC... and the engine runs very smooth now... when I accelerate I have no pinging.... perhaps this is the way to go... ( even if the construct looks a little strange....)

Greetings Juergen