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I have a Carver Montego 2750 and am on second set of engines (Jasper remans). I would like to replace 470's with 4.3's but am having trouble getting info on technicalities of conversion. Mechanic says stringers have to be reworked for mid mount 4.3's. However, this boat model came from factory...
I have twin 3.7's and the starboard engine requires the throttle to be well advanced of the port engine to get the same rpm's (in the 3600 to 4000 rpm range). Engines are fairly well synchronized in the lower rpm ranges. Both engines are new remans by Jasper. Starboard quadrajet was replaced by...
