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Author Topic: Carburetor rejecting because of RPM duel plane intake runner length?  (Read 419 times)
FORD93GTFREAK
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« on: February 28, 2017, 08:27:32 pm »

I'm running a dual plane RPM intake its got two different plenums lengths.

Should the carburetor jets be different sizes? especially on the primary side of the carburetor because of the different plenum volume and distance to the intake by the runners.

I hope I worded that correctly...I was doing some reading and came across that bit of info from another forum.
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juiced coupe
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« Reply #1 on: February 28, 2017, 10:28:08 pm »

I've never had to corner jet a carburetor for any application. I've heard of the practice but never had a need for it.

It also seems like it was more common with single plane intakes.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

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Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
289nate
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« Reply #2 on: March 01, 2017, 02:30:40 pm »

I've only seen the jetting different on dyno tests trying get every last HP on the printout and when people are paying real close attention to egt's of each cylinder.  I doubt it makes any real difference at the track or street.
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
FORD93GTFREAK
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« Reply #3 on: March 01, 2017, 07:41:55 pm »

O ok, I really didn't feel like it would benefit me at all, but I just wanted to out that out there.

thanks!
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