I need you guys help I recently bought a carb for my truck and guys says it is a holley 750 4 barrel but I haven't been messing with them very long jus wanting to know how to identify it and I will post a picture 2moro morning if that will help

 

picture of carb

 

Look for a # stamped in it on or around the top of the carb then google holley + the number. Unless someone knows them by sight and posts in.

 

it says r37 on the side of it