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Modifying a 460 Edlebrock Air Gap

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Old 10-11-2008, 03:33 PM
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Modifying a 460 Edlebrock Air Gap

I'm running a 545 with an Edlebrock dual-plane Air Gap. I've been thinking of grinding most of the wall between the two plenums - at least to the floor of the upper plenum for a little more performance. At this time I don't want to go to a single-plane manifold. I have this engine in a '79 F350 that I pull a fifth wheel trailer and I feel that the dual-plane gives me a little more lower end torque and I'm not looking for power up high.

Can anyone tell me if this will work?

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Old 10-22-2008, 02:24 PM
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It's aluminum and if you do go too far you can patch it pretty easily. However it would probably be much easier to put in a spacer to increase the phenolic volume.
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Old 10-22-2008, 08:31 PM
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Thanks ReAX

I have a spacer and found out at the machine shop that I use that I can notch & blend the parts of the spacer that separates the 4 carb openings - it's not an open plenum spacer. It should be easier than cutting on the intake.
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