Carburetor sizing calculator - El Camino Central Forum : Chevrolet El Camino Forums
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  #1  
Old 01-31-2013, 09:25 PM
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Default Carburetor sizing calculator

Here is a link to Quick Fuel's Carburetor sizing calculator. Have fun with this! Scroll down to find the interactive puter!! One of the most common questions asked in this forum.."What size carb do I need?"

http://www.4secondsflat.com/Carb_CFM_Calculator.html
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  #2  
Old 02-01-2013, 01:23 PM
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I looked all over their website and couldnt find it.

Thanks for posting the link James.
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Does anyone have any marbles for sale? I seem to have lost mine.
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  #3  
Old 02-01-2013, 01:35 PM
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I just checked the link. Works fine. Squirt some WD-40 into your puter
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  #4  
Old 02-17-2013, 04:39 PM
wanano wanano is offline
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this is invaluable.
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  #5  
Old 02-17-2013, 08:09 PM
steelybill steelybill is offline
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I squirt Kahlua into my PC instead of WD-40. It sticks in there longer. In fact I think I'll check the bottle to make sure I don't run out...

How do we know what the volumetric efficiency of our engine is ? Must be an average for a stock engine etc.....
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Last edited by steelybill; 02-17-2013 at 08:15 PM.
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  #6  
Old 02-17-2013, 08:18 PM
woody31 woody31 is offline
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a stock engine is about 80% v.e. on a good day...
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  #7  
Old 02-17-2013, 08:20 PM
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Good one James!
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  #8  
Old 04-12-2013, 08:59 PM
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Bumped for Moose and Steelbeast.
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  #9  
Old 04-12-2013, 09:32 PM
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Hard to get over 80% without a Blower or Turbo...

The best throttle response I ever had on a 350 between the stop lights was a Holley 500 2B...Run the numbers and see why...I have a 600 4B on my current 350...

Now if you are Drag Racing Double the number that you see on the Calculator...That is a whole different story...
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  #10  
Old 04-12-2013, 11:49 PM
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The last carb you will ever need. http://www.ebay.com/itm/3x1-John-FIS...f3fa23&vxp=mtr

If I had the money.
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  #11  
Old 04-13-2013, 12:10 AM
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I just picked up a NOS Offy Dual Quad spread bore intake to go with 2 matching number Q-Jet Carbs I have...that will be the intake for the 302 that I am planning for the 69
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Old 04-13-2013, 04:03 AM
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I'm thinking about shooting for a 650 or 670 Holley..
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  #13  
Old 04-13-2013, 09:44 AM
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thanks for the link looks like I should get a 450-500 cfm carb when I eventually need it.
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  #14  
Old 04-13-2013, 05:05 PM
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Bumped for my mate down under!
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  #15  
Old 04-13-2013, 05:17 PM
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Thanks James.
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