The down side is the heavy zinc main body and the choke horn although I've done several w/good results I prefer the alum. main bodies and of course BILLET is the shiznit.......... biggrin

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....