I have my timing set 12* advanced. This seemed to work the best for me. Not sure why it would be 2* retarded. That would hurt performance especially on the low end. Also, as stated earlier check the muffler it could be partially stopped up if it is the stock one that is 30 years old.
As for the chain all the slack needs to be on the passenger side because thats where the tensioner is at. When installing it you want to make sure it is tight on the drivers side between the cam and crank so that the tensioner on the passenger side takes up all the slack.
Yes I understand. I did that on my 94 single row. I remember that. I am not sure if his was set up that way. I will pull that off and check it and adjust his cam gear back to 0 at 0TDC. The muffler is brand new no cat stock. No issue there.
Your timing is set at what with the vac advance off?
