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WTB: 351C 4V Air Cleaner Assembly with vacuum valve
#1
Would like to purchase a good condition 351C 4V air cleaner with vacuum valve (lets extra air in during acceleration) and chrome lid. I have a 73 Q code that does not have the air cleaner with the vacuum valve.
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#2
Look by Motorcity Mustang

http://stores.ebay.com/MotorCity-Mustang...34.c0.m322

Idea
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#3
It would seem that some 'Q' code Air Cleaners got this extra valve and some did'nt? Was it just the '73's, does anyone know for sure?
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#4
Pretty sure it was 72 only
It was Fords answer to getting caught by the EPA and not being able to put ram air on 4 V cars
So they called it a Cobra Jet and added the diverter door

73 went to just a Q code 4 V and no door
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#5
My 1972 Q code had the door, I am guessing anything that came with the 351 CJ motor in 72 got the same air cleaner. I liked the factory chrome air cleaner cover.
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#6
I cant imagine there is a measurable difference in performance from that small opening?
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#7
eddyw;156121 Wrote:Look by Motorcity Mustang

http://stores.ebay.com/MotorCity-Mustang...34.c0.m322

Idea
Seems like a lot of money for a rusted air cleaner that may not even work.

wwhite72;156255 Wrote:I cant imagine there is a measurable difference in performance from that small opening?

I don't know if there will be a large difference in performance or not. It has to breath better with two openings vs. one. Besides, it is more of an aesthetics thing and it only takes a few minutes to swap back to the original air cleaner.
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