The only thing custom is the mount for the sensor, The Falkon ignition were bought about 4 months ago for about $80.00 but they have gone up to about $110.00. the flywheel and prop hub were made on a lath. I might use C-H on the next one I do if I can find out why the Fox I have has the timing set at about 4 deg ATD and not 28 deg.
Milton