I have a Holley 850 Vacuum Secondary 4 barrel carburetor for sale. Part number 80531. This carb came off a 502 crate motor.

I bought this recently and put it on my car for short time but I'm going to use a different carb so I don't need it anymore. There is NOTHING wrong with it.

It was new when I purchased it and probably has 100 miles on it or so. I guarantee the carb.

Summit price is 469.95 plus shipping & handling. http://www.summitracing.com/parts/HLY-0-80531/

Complete carb: $300

Carb minus choke: $260

Thanks, Kurt