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145hp vs. 105hp
https://slantsix.org/forum/viewtopic.php?t=35114
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Author:  MichaelS [ Wed Apr 29, 2009 4:02 pm ]
Post subject:  145hp vs. 105hp

What would it take to get my 1974 slant rated at 105 HP back to the '71 and earlier 145hp rating? Is there really a 40 hp difference or is it just in the way they rated the Hp in '74?

Author:  66aCUDA [ Wed Apr 29, 2009 4:06 pm ]
Post subject: 

Really its the way they were rated. However emissions didnt help either.
Frank

Author:  SlantSixDan [ Wed Apr 29, 2009 4:18 pm ]
Post subject: 

See here.

Author:  MichaelS [ Thu Apr 30, 2009 5:41 am ]
Post subject: 

Thanks, I didn't think the emissions took all the 45hp from the old beast.

Author:  SlantSixDan [ Thu Apr 30, 2009 4:29 pm ]
Post subject: 

Big improvement that'll take you about 45 seconds: Bypass the OSAC valve. Run the distributor vacuum advance hose directly from the carburetor to the distributor with no stops in between.

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