I have 4 carb's that need id. Thanks Holley 5752426 list#1850 241 - Holley 3868864 ES list #3140-1 504 Holley list #3310-2 1598 - Q-Jet round tag on the side 7026202 K 5 DB

Little help:
* Holley 5752426 #1850 ~ ? Doesn't look like a GM part number and Holley aftermarkets list -2, -3, & -4 models now. 600 cfm model 4160. Could be original equip on Ford or MoPar. ?
* Holley 3868864 ES #3140-1 ~ factory 1966 396/325 Powerglide trans Chevelle.
* Holley 3310-2 ~ Holley aftermarket replacement/hi perf carb (750 cfm) patterned after the 3310 used on the 65 Z16. First 3310 model to be converted to secondary metering plate instead of replaceable secondary jets (model 4160)
* Q-Jet 7026202 ~ GM parts book shows this as the kit for 1968 All (P.G. w/4BC)(327)(exc. A.I.R.)

1850 is 58-61 Linc,Merc,Thunderbird all with 430 engine, 241 is '62 April 1st week
575-2426 is Ford number

My 66 service manual has 7026202 as one of the carbs for 327/275hp AT
K 5 is Oct '65. This one looks like maybe a Q-jet made by Carter

Thanks for the reply. I don't know where I got a %ord or mopar carb. the 3310 was on my chevelle with the orig airfilter on it. The #3140-1 was in the trunk. the Q-jet must be the orig carb for the 65 327 that in the nomad. They all were in boxs for many years and of corse I didn't tag anything. thanks again