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11-18-2016, 05:30 PM | #1 |
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Carb number question
In stock, If I have a carb that does not have a number that is on the list of acceptable
carbs but has all the correct dimensions is that ok or not? Thanks |
11-18-2016, 06:14 PM | #2 |
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Re: Carb number question
Yes, NHRA stopped making us have the matching numbers years ago
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11-18-2016, 07:21 PM | #3 |
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Re: Carb number question
What? Your saying that if the bores and venturis are the correct size, it's legal??? Not in the part of the country that I race in.
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11-18-2016, 09:45 PM | #4 |
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Re: Carb number question
Every AVS carb from 68-70 on the 340 and 383 have identical bores and Ventura size, I doubt those little numbers on the corner mean much now after 50 years.
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11-18-2016, 10:59 PM | #5 | |
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Re: Carb number question
Quote:
Jim Mantle |
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11-19-2016, 08:48 PM | #6 |
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Re: Carb number question
I understand the part number part of this question but you better make sure that things are configured as original. I have seen these items get someone bounced (at least on Holley carbs):
Center pivot bowels that weren't OEM Dual inlets that weren't OEM Changing metering plates to metering blocks Secondary idle circuits Throwing away the vacuum secondary parts Polishing bores (even though they measured legal) Milling down the throttle rods Secondary accelerator pumps that weren't OEM There is a lot more to what constitutes a legal carb than just bore and venture. If any carb that meets the measurements are legal, why does NHRA have a list of legal replacements, wouldn't any carb that measures correctly be legal? I know my case is a little different (SS modified), there are specific carb numbers and minimal modifications that are allowed. Every time I have been torn down, the carb gets a very careful visual inspection beyond the obvious measurement check. Jim Caughlin SS6019 |
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