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    Alpha 1 ratio

    How can I tell what gear ratio my alpha 1 is its a 5.7 engine but im thinking someone switched the out drive, Is there a way of telling wht it is.
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    prop help please 20 ft w/260 hp

    I have a 20 ft open bow sunbird 1984 with a 5.7 260 hp alpha 1 outdrive, There is a 21 pitch 14.75 alum 3 blade prop on it, Ittops out at 5500 rpm at 45 mph,using a GPS I dont want the engine to rev that high and that's the lowest rpm I can run to get 45 mph.I feel it should get more mph, That...
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    Help fiberglass repair

    Have a 1984 sunbird 20 foot, The fiberglass is cracked through the hull in the front bottom along a raised area (keel) crack is 1/4" wide 6" long like someone hit a big rock, this area I can get to the inside in the ski comp. I have tried bondo fiberglass polyester with fine glass mating, today...
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    roller trailer versus bunks

    What kind of trailer do you recommend, I have a 21' open bow deep V 5.7fiberglass boat, now my trailer is a single axle roller, I need a bigger trailer want a double axle, what are the benifits of each kind of trailer bunk boards or roller. Thanks
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    prop help!!!!

    I have a 20 1/2 fiberglass boat with a 350 chevy 260 hp I/0 alpha 1 outdrive currently I have a 21 pitch 3 blade alum prop, Top speed is 43 mph GPS at 4900 rpms, Based on that what whould you recommend or am I proped right, what whould a 19 pitch do? any thoughts mostly a pleasure boat, but I...
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    1984 sunbird 5.7 which prop

    I have a 20 foot open bow deep V fiberglass boat with a 5.7 260 hp engine alpha 1 outdrive. Now the boat has a 21 pitch alum 3 blade prop on the boat. It will run 44 mph on GPS @ 4900 rpm, I was wondering I have also a spare alum prom but a 19 pitch what do you expect it will do with the rpm's...
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