Does anyone know off hand the proper procedure of tightning the belt on a procharger system on a 500EFI. It has the spring loaded tensioner and adjustment bolt. Thanks !

You will have two grooves in the tensioner arm on one side and two grooves on the other end of the arm. Depending on which way the tensioner goes(it is made to work with several models), you should have the two lines on the arm(they are about a half inch apart) between the line on the stationary tensioner base. Does that make sense?
Put the one line on the base between the two lines on the part that moves.
Eddie

Thanks, That is where it is at now. That was about my guess, But I didn't want to guess at it and have a problem for someone later!