I have noticed yours is a mayfair Mr Davis, mine was a PACE so maybe the cowl was limited to these re badged victa high archs?

in any case, i ran the mower the other day (have not run it since right after the resto) and man does this thing have some guts! sounds soo smooth (smoothness only beaten by the twin) and theres so much power that the rear catcher gets blown out by the blades turning (im sure i dont have an air leak either so i dont think its over revving). should i be worried or does this sound about right? (i might be able to take a video of it running and post it up).