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Fixing the old truck

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#1429198 11/04/2021 6:52 PM
Joined: Oct 2012
Posts: 307
C
'Bolter
'Bolter
C Offline
Joined: Oct 2012
Posts: 307
Anyone know what the difference is between the AC dual fuel pumps 4138 (55-57) and 4666 (58-62) might be?


1958 Chevy Grumman Olson step van
Joined: Mar 2010
Posts: 1,659
B
Curmudgeon
Curmudgeon
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Joined: Mar 2010
Posts: 1,659
Inlet and Outlet position for one.
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Fuel Pumps 4138 and 4666.jpg (79.77 KB, 63 downloads)


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."

Moderated by  Phak1, Woogeroo 

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