I was getting ready to buy a kit for my holley double pumper, I was told it was a 4011 series. I bought the carb used, but in good shape off of ebay. The number given to me was R840161160. I don't find that anywhere on the carb.

The number stamped on the front fuel bowl is 12R 10658B. That doesn't bring anything up in the holley carb list.

What do I have here?

 

You have a list # 84016, which is a sample of a model 4011.

http://www.holley.com/HiOctn/ProdLine/CarbList.pdf

Click on the Find tool button (looks like binoculars) and type in 84016. You'll get a whole bunch of specs and parts and stuff.

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"So many Mustangs, so little time..."
ICON Motorsports

 

The problem is, that number is not on the carb anywhere that I can see anyhow....

 

I can see your carb over the Internet!!!

R840161160

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"So many Mustangs, so little time..."
ICON Motorsports

 

The number is usually stamped on the front of the choke horn. If the choke horn has been cut off then so has the number.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley