Ferm, crossflow question
what do you know about hopping up an old V4 cross flow. A freind of mine has a 88 spl gooing on an old 17 Formula. I found an old 140 cross flow with the bubble back exhasut plate, what will interchange motor wise, and what worth interchanging, this motor respond to any particular mod? I know my way around a V6 merc, but I don't know anything about hopping up an old Johnrude
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