summit racing carbs

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Jan 28, 2014 | 09:54 PM

1999stroke

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From: Redding, CA

summit racing carbs

hey guys was wondering if anyone has run a summit racing carb on any of there projects have always run holley's but the summit has a little bit better of a price any info would be appreciated

Jan 28, 2014 | 10:01 PM

HIO Silver

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From: NorCal

Yuuup.. I picked one up for $235 a couple of years ago. Ran well on my 65 'Stang before switching to an Autolite 4100. I highly recommend Summit's carb... it's a Holley clone. Go for it.

Jan 29, 2014 | 11:03 AM

bmuhlbach

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From: hinckley ohio

I bought a Holley 600 because I wasn't sure if I did it again I would have bought the Summit. Cheaper and dual feed.

Jan 29, 2014 | 12:27 PM

jim collins

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From: South west Idaho

What is the CFM on the Summit carb , 600 ?

Jan 29, 2014 | 01:44 PM

HIO Silver

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From: NorCal

Quote:

Originally Posted by jim collins

What is the CFM on the Summit carb , 600 ?

your choice of 600 or 750 cfm

Jan 29, 2014 | 04:13 PM

1999stroke

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From: Redding, CA

how big should I go on my 460

Jan 29, 2014 | 05:38 PM

JEFFFAFA

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From: Phoenix, Az.

Quote:

Originally Posted by 1999stroke

how big should I go on my 460

According to Holley the equation to figure this out is:
Engine CID (460) X max RPM (you plan on spinning) divided by 3456.

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Jan 31, 2014 | 02:20 PM

HIO Silver

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Joined: Dec 2009

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From: NorCal

Quote:

Originally Posted by JEFFFAFA

According to Holley the equation to figure this out is:
Engine CID (460) X max RPM (you plan on spinning) divided by 3456.

Lemme add that the equation above assumes 100 percent VE or "Volumetric Efficiency". Pure race engines typically achieve upwards of 90-95 percent whereas well-tuned street/stock engines generally achieve around 80 to 85 percent. Therefore, multiply the end result by .80 or .85 as a rule of thumb to size the carb... upsize slightly if the engine has a lumpy (over .480 lift) camshaft.