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#1
02-02-2026, 05:30 PM
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ID this carb
Bought a 66 Tri power intake and carbs many years ago. Now taking a shot at figuring out exactly what I wound up with. Photos below show the center carb that was on the intake. Only two numbers I can find on it are 7037688 on the bowl and 31892 cast into the bottom of the base plate. I have owned Tri power cars since 1977, so I’m somewhat familiar with the setups, but I’m no expert. Much of this carb looks familiar, but the base plate seems weird. I realize it could be a Frankenstein version somebody cobbled together. Can anybody offer any insight as to what this thing is?
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Terry Hunt "He'd need 5 years in the fifth grade just to get an idiot certificate" Smokey Yunick re: Bill France Jr. |
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#2
02-02-2026, 05:47 PM
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ID this carb
Edit: discovered more numbers stamped into choke side of the bowl as follows:
7029104 2 CB91
__________________
Terry Hunt "He'd need 5 years in the fifth grade just to get an idiot certificate" Smokey Yunick re: Bill France Jr. |
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#3
02-03-2026, 07:51 AM
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Bowl 7029104 is 1969 Chevy 327, air horn has cast # inside, idle vent cover is a Chevy thing.
Throttle plate looks legit, wrong style idle needles though. |
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#4
02-03-2026, 03:58 PM
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I decided to look this one up in the 1969 Rochester book;
Curiously in the index, this application number isn't listed, but it is shown on the 327-2bbl page shared with the following application numbers; 7029127 (manual trans/standard) 7029129 (manual trans/air cond) 7029102 (automatic trans/standard) 7029104 (automatic trans/air cond)
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
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#5
02-04-2026, 04:00 PM
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7029104 is indexed in all mine 60´s, 70´s and 80´s #9 Delco manuals.
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#6
02-04-2026, 04:40 PM
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ID this carb
Well I was pretty sure this was not correct for this set up, so I’ll see if I can send it down the road to some Chevy guy. Thanks for helping me figure out the original application on this
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Terry Hunt "He'd need 5 years in the fifth grade just to get an idiot certificate" Smokey Yunick re: Bill France Jr. |
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#7
02-04-2026, 10:27 PM
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Would be interested in the carb if you're going to send it down the road. Let me know. Thanks Joe
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#8
02-05-2026, 08:12 AM
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With Pontiac throttle plate and (Pontiac?) airhorn it´s not a Chevy carb either, more like a "Frankencarb."
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#9
02-05-2026, 05:23 PM
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/\ and these days, most are!
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
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#10
02-06-2026, 05:01 PM
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ID this carb
Joe, you have a PM
__________________
Terry Hunt "He'd need 5 years in the fifth grade just to get an idiot certificate" Smokey Yunick re: Bill France Jr. |
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#11
02-07-2026, 06:44 AM
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Terry, PM returned last night. Thank you Joe
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