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Edelbrock FM255 vs. FM257

Posted By Florida_Phil 6 Years Ago
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Florida_Phil
Posted 6 Years Ago
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I saw that.  Anyone ever tried that combo on the street?


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charliemccraney
Posted 6 Years Ago
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While the 255 has medium ports, it will work and in fact, it was the top performer in Ted's 2x4 testing.

http://www.eatonbalancing.com/2014/01/17/y-block-ford-dual-quad-testing-on-aluminum-heads-part-ii/



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Florida_Phil
Posted 6 Years Ago
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Sorry about that.  The carbs I want to use are 4160 465 cfm. 

http://forums.y-blocksforever.com/uploads/images/88089d17-3ed8-4806-a310-2a96.jpg


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KULTULZ
Posted 6 Years Ago
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Will a FM255 and two Holley 4100s mounted straight work with 1957 "G" heads on the street. 


The 4100 was a FORD carb (designed by HOLLEY). Are you describing the actual 4100 or the HOLLEY 4150?

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Florida_Phil
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I understand an Edelbrock FM255 intake manifold will mount two Holley 4100's straight.  I would like to use two Holley 465s with adapters.  I have been told an Edelbrock 257 would require side mounting 4100s. I understand the FM 255 was designed for small port heads.  Will a FM255 and two Holley 4100s mounted straight work with 1957 "G" heads on the street.  Thanks!


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