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Fuel systems Q&A Carbs, injection, tanks, lines, pumps, everything fuel system related! |
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#11
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my opinion only, valid where prohibited, for official abuse only. ![]() 1928 maxwell hybrid build/drag car http://ratrodsrule.com/forum/showthread.php?t=37455 1948 dodge truck in deceased son's memory. http://www.ratrodsrule.com/forum/sho...odge+truck+son 1930 2dr mopar. http://ratrodsrule.com/forum/showthr...ht=30+mopar+dr |
#12
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We usually use a 1/2" or 1" phenolic spacer under a heat shield to reduce heat transfer to the carb, then put the carb on top. I don't think that 2" spacer will help drivability but it might not make a big noticeable difference.
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My 455 Buick powered '46 GMC Build Thread My '46 GMC on Photobucket --------------------------------------------------------------- When you don't know what you're doing, it's best to do it quickly. And when I’m gone, you can call me foolish but hopefully not boring. I will have lived. The more I learn about women, the more I like my car. |
#13
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See.... It's true.... Size doesn't matter...
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My 96 GMC Rat Buildbuildthread |
#14
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if it is a 4 hole spacer, you might gain a few lbs-ft of low end torque, if it is 1 big square hole it will kill a s___t load of low rpm torque but may give you a little higher top rpm.
the only reason to run a 2" 1 hole spacer is if you are class restricted to a very small cfm carb, the big open plenum will act as a reservoir of fuel mixture so there is less restriction for each cylinder to draw from. this is why you don't see them on the street. |
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