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getting a few more ponies out of a 70 johnson
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<blockquote data-quote="Pappy" data-source="post: 340331" data-attributes="member: 3278"><p>Increase compression and get out the porting tools for that one. </p><p>It responds really nice to matching the ports to the old 75hp blocks. </p><p>Bottom end power goes away noticeably but you can more than make up for it from 4000 to 7000RPM. </p><p>Oh....and you have to find an old non limiter power pack as well.</p></blockquote><p></p>
[QUOTE="Pappy, post: 340331, member: 3278"] Increase compression and get out the porting tools for that one. It responds really nice to matching the ports to the old 75hp blocks. Bottom end power goes away noticeably but you can more than make up for it from 4000 to 7000RPM. Oh....and you have to find an old non limiter power pack as well. [/QUOTE]
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getting a few more ponies out of a 70 johnson
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