Holley How To

subscribed so i dont lose this thread.

BTW.....is it easy to tell a little holley from a big holley??

when i get back home i need to look into telling a couple holleys apart.....i have a 390 cfm for a slanty and i have a 850 that came off a 440.......problem is that i mixed them up and i dont know what i am looking at.......i only know TQs and never really messed with a holley other than pulling them off the engine and mixing them up in my disorganized barn :violent1:

so where do i need to look for numbers?? or what am i looking for to tell them apart?