Vibrations / Shaking / low power

That's what the guys from Summit told me to use as replacement...

Brand:Boss Hog
Manufacturer's Part Number:53080
Part Type:Torque Converters
Product Line:Boss Hog Street Bandit Torque Converters
Summit Racing Part Number:APE-53080

Anti-Ballooning Plate:No
Lockup:No
Diameter (in):12.000 in.
Furnace-Brazed:No
Balanced:Yes
Hardware Included:No
Quantity:Sold individually.
In-Store Pickup:Choose In-store pick-up (OH, GA, NV) on our web site.

Right there boss, is your problem as others have stated. Do not run anymore or you will mess things up. 318 is internally balanced so therefore it does NOT need a balanced torque convertor.
360's are the ones that need the balanced torque convertor.
Hopefully you didn't run that too much, otherwise you might have problems there boss... :sad1: