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FootbrakeJim
DRR Sportsman
Picture of FootbrakeJim
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quote:
Originally posted by BP758:
Jim
We’ve been running that combo and a 650 for the last 13 or more years..
Just freshened the 650 three weeks ago with new carbs. Found 16 foot lbs, probably 18 hp or more and it picked up vacume too.
We have a baseline pull 5800 to 7500. All gains show up without pulling to peak..8300.
Can’t wait to bolt those carbs on the 637.

Nice little find! Wink
How long will you have to wait to test it on the track?


Dan "Jim" Moore
Much too young to feel this damn old!!
 
Posts: 1110 | Location: Farmersville, TX  | Registered: December 05, 2002Reply With QuoteReport This Post
BP758
DRR S/Pro
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Feb Pomona or testing Redding. Testing probably, four link changes too.


California Screaming!
Raceless in California!
 
Posts: 4694 | Location: Vacaville  | Registered: January 07, 2004Reply With QuoteReport This Post
BP758
DRR S/Pro
posted Hide Post
quote:
Originally posted by 67Duece:
If there is anyone out there that knows where i can find a set of valve covers for these heads i would like to have a set.

Thanks



I’ll look around out here.


California Screaming!
Raceless in California!
 
Posts: 4694 | Location: Vacaville  | Registered: January 07, 2004Reply With QuoteReport This Post
67Duece
DRR Trophy
posted Hide Post
quote:
Originally posted by BP758:
quote:
Originally posted by 67Duece:
If there is anyone out there that knows where i can find a set of valve covers for these heads i would like to have a set.

Thanks



I’ll look around out here.



Thanks
 
Posts: 28 | Location: Tennessee | Registered: June 09, 2020Reply With QuoteReport This Post
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