Setting up 100bhp per litre of gas is no mean feat to get working properly, so i would imagine Mike was right on his "its a windup" post TBH as i cant imagine chesney having a clue what he would need to do in order to get it working correctly.
No reputable supplier should issue you with 200bhp jets in the first place without some proof you know what you are doing, wizards of nos certainly wont.