is this on the front right flange?
The first 4 numbers are sequence numbers, the next are the carb numbers
What I believe you have there is a 4200S, I believe it's around 475 to 575 CFM's. I might be wrong, does it have a 4 3/4" or 5 1/4" opening for the air horn
Last edited by raguza123; 09-04-2012 at 10:00 PM.