Well, looks like the tensioner is going out again.
I looked at swapping the Magnum stuff onto the from of the motor, but got tripped up with the missing bosses on the front of the LA heads.
Magnum Serpentine on a '91 TBI 318? Without changing the intake?
So I am going do the Gates #38139 swap.
If only I had gotten the 5.9 swap done this last fall.