Good choice! Most folks today have never run the 20’ hull with only 300 lbs on the transom, but I ran my Seafari for over 30 years with a 1975 “115” that probably wasn’t much more than 105 hp at the prop, but it rode and handled great! Cruised at 20 kts with a heavy load in 2-3’ square waves all day long at 4500 rpm and 2.8 mpg, with WOT of 34-35 mph. Gas mileage with the E-TEC should be 40-50% better than that! The ride with the bracket and ~420 lbs of motor mounted 30” further aft was noticeably worse until I added some bandaids like an AV plate fin and 4B prop!
I’d still recommend using Costa in the transom and using a 4B prop and/or a fin on the AV plate for even better low speed performance. Good luck with your restoration!
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