It’s been a while since I had to run an airbox…. From my recollection, there were no 4 hole boxes that were CIK homologated, either 3 holes of 23mm, or 2 holes of 29mm.
In the first post it sounded like Mr Davies gave you an option of plugging one of the holes? Maybe you should have duct taped one of the holes shut to see if that made the difference?
November 15-19, 2017
Las Vegas, Nevada
SKUSA SuperNationals 21
2018 Events TBA