Thankxxx............the four hole is only a 1/2" and more less there to keep the carb`s guts from falling in the motor but I must say my afr`s sure cleaned up w/it.
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.....
