camshaft• The compression figures, whilst not particularly low, suggest that it may be camshaft wear.• Ivars needs help with a Hobson or a Zenithcarburettor, correctcamshaft timing and much more.• His design does away with the latter's camshafts and valves.• Mods include sportiercamshafts and bigger valves.• A youngish man deals with us, taking us to the shopfloor where camshafts are made.