You can install the cam backwards. The cam lobes are the same, look at the cam lobes from the left and right.
The notch on the cam by the sprocket will be on the right instead of the left. The dot by the sprocket teeth will be on the wrong side too.
On a points ignition this will put the points on the right and advancer on the left. This will spin the advancer backwards and it may not advance right. This might give timing issues.
On a TCI it will run fine.
On a Boyer if you install the ignition on the left side as it should be it will run fine.
On all this if your exhaust is hot on one side and not the other I doubt the cam or ignition are the problem. This is most often a carb problem. On stock carbs, on the cold side the idle circuits are probably plugged, the carb sync may be off.
From what I know of after market carbs the same applies.
If you have stock carbs read
www.amckayltd.com/carbguide.pdf This is a carb guide for stock carbs. It describes how to tear down, clean, inspect your carbs. Once this is done you can determine if anything needs to be replaced.
Once you replace the needed parts the guide help you reassemble and adjust the carbs.
Leo
