Great catch Doug! On the gaskets, i had the same problem , but mechanical fuel injection allowed me to use silacone sealer, no gasket. Any minor air leak i could compensate for by adjusting the injection system . There must be a better way to seal that intake when running carbs. My guess is it will require some form of metal gasket with a sealant imprinted on it, or a MLS type gasket, pinbed to the head or intake?