The later pedal box that you have, the original 2012 item had "M3W" laser cut into the pedals and a recall against it for failure, is attached as far forward as the mounting holes allow. Have a check of how much clearance there is between the front of the master cylinders and the chassis tube, you may have a replacement later chassis as well that allows more forward movement. If there is room you will need to drill extra mounting holes in the floor. Just seen your other thread about bolt in A frame, so you don't have a later chassis, in which case the pedal box is as far forward as it goes.
Last edited by planenut; 21/12/20 04:44 PM. Reason: additional info