After a stellar performance by my young son in a flathead money race last Saturday at a local track we were quickly disqualified due to the head gasket coming apart upon removal from the engine. The tech measured the gasket in four places and the point where the gasket stuck to the head and block did not meet the min. thickness, we then explained that there is gasket material stuck to the block and head and he stated that he did not care and rules are rules. I have been in kart racing for 8 years now and have never had a head gasket checked or let alone disqualified for it, is this normal?