Here's my old setup in my 98 sunsetter vlx...we had a 750 on each side of the motor....a twin air mattress filled in the ski locker..then another 500 up front with a little lead spread around as well. It prolly could have used some more weight up front because it was washy at times. The 750's will fill up but be careful cause it will bow your engine wall . Here is a pic of the 750 filled.