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SWAPPING BASE PLATES AND MAIN BODIES #819433
10/01/10 09:01 PM
10/01/10 09:01 PM
Joined: Sep 2005
Posts: 2,442
LOWELL IN
Q
QWK_ENUF Offline OP
top fuel
QWK_ENUF  Offline OP
top fuel
Q

Joined: Sep 2005
Posts: 2,442
LOWELL IN
any one know the rule of thumb when swapping carb parts.

such as what MB on what BASE result in a 950 cfm , 850 cfm , 750 cfm etc

thanks


WAXER
Re: SWAPPING BASE PLATES AND MAIN BODIES [Re: QWK_ENUF] #819434
10/02/10 12:21 AM
10/02/10 12:21 AM
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
J
joedust451 Offline
super gas
joedust451  Offline
super gas
J

Joined: Feb 2005
Posts: 5,221
Branson, Mo.
Quote:

any one know the rule of thumb when swapping carb parts.

such as what MB on what BASE result in a 950 cfm , 850 cfm , 750 cfm etc

thanks




A 950 is basically a 750 MB with an 850 base, But the bottom of the bores on the MB are opened too 1.3/4 to match the base, they share the same 1.3/8 ventury opening, the 750 is 1.11/16 on the bottom & matches the 1.11/16 base.

An 850 is 1.9/16 on the opening too 1.3/4 on a 1.3/4 base.

A 750 is 1.3/8 too 1.11/16 on a 1.11/16 base.


75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU






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