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1989 20 HP Johnson power upgraded to 25 HP for zero dollars
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<blockquote data-quote="shawnfish" data-source="post: 327771" data-attributes="member: 4468"><p>I checked 2 other sites along with BPR before I posted to be sure. and if the carbs are the same but have different numbers for the 20's and 25's then you would think the intakes would be assigned different numbers?????? to me it just seems logical that the 25 is capable of pushing more air than the 20 because why else wouldn't both motors have the same carbs with the difference being the restrictor on the intake on the 20hp? I guess im torturing myself thinking about it because if you say you got more hp from doing it then that's all that really matters I just dont get it lol! that's weird your casting numbers show up as the actual part number for your carb because I know up until at least 1984 if you run any casting number in a parts search 98% of the time it comes up as there is no match for that number and I do know that some parts from back then had the same cast numbers on them but the parts would be used on different years and hp's motors.... and to charger that's exactly how I was thinking in regards to the restrictor plate races for nascar......</p></blockquote><p></p>
[QUOTE="shawnfish, post: 327771, member: 4468"] I checked 2 other sites along with BPR before I posted to be sure. and if the carbs are the same but have different numbers for the 20's and 25's then you would think the intakes would be assigned different numbers?????? to me it just seems logical that the 25 is capable of pushing more air than the 20 because why else wouldn't both motors have the same carbs with the difference being the restrictor on the intake on the 20hp? I guess im torturing myself thinking about it because if you say you got more hp from doing it then that's all that really matters I just dont get it lol! that's weird your casting numbers show up as the actual part number for your carb because I know up until at least 1984 if you run any casting number in a parts search 98% of the time it comes up as there is no match for that number and I do know that some parts from back then had the same cast numbers on them but the parts would be used on different years and hp's motors.... and to charger that's exactly how I was thinking in regards to the restrictor plate races for nascar...... [/QUOTE]
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1989 20 HP Johnson power upgraded to 25 HP for zero dollars
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