I forgot that your engine has the voodoo 60303 and lower compression.
Give it more initial timing. Experiment with 14 to 16* BTC. Idle speed 600 to 750 in neutral would be acceptable.
Mattax, i did folow your indicattions (more or less)
I increased the timming to 17*,also removed the carb and adjusted the secondaries blades to almost closed position.I have used a 0.05 mm feeler gauge between the blade and the bore.
After installing the carb again,it has been difficult to start it at the beginnig,even i have fouled three spark plugs.
After replacing and cleaning the plugs,it has started to have a better idle,vacuum and rpms are stadier now,but it continues needing an extra air source for breathing at idle.
It has been neccesary to open the brake booster port(I have manual brakes right now,so i,m using it for the headlights covers).
I have recorded a video if you want to take it a look:
https://youtu.be/gdl8TiNS31MAbout the cam,some users say that they are getting 12"at idle from these 60303.I suppouse they will have automatic transmissiions and higher idle speeds..
