I was reading about the benefits of decarbing on the forum. I have never attempted to decarb my motor. The motor is new to me, its a 1965 Evinrude 18hp Fastwin. It runs great, I really have no complaints but would like to decarb since I don't know when it was done last, and it really appears to have no down side. However, I cant find Seafoam Deep Creep anywhere. I've tried NAPA and Carquest. I found Valvtect but would really rather use Seafoam based on its recommendation here at the forum. Thanks