engine only runnung about 4500rpms when hot but running 4900rpms when cold i think the coil is breaking down when hot took the flame arrestor off and fount some unburnt fuel in the thottle body this should be dry i would think boat is in storarge at the lake so i try to get my parts before i go down does any body have a part # for a replacement coil or what kind of coil to get i have a 1995 454 mag efi thanks