I`ve got to give a shout out to Greg at Superformance Gaskets for the absolute BEST gaskets out there hands down. Been runnin the same valve cover gaskets for 4+ years and just received a complete carb set for my dommy and been into the carb several times with one complaint..........the metering block fall off every time I pull the bowls off. And that`s a GOOD thing where all of the the other metering block gaskets would stick to the body and leave an impregnation on the gaskets when removed. These babies leave NO impregnation at all and look new every time. Unaffected by oil and fuel, don`t stick, wick of fall apart.............. I`m trying to get some local shops to step into the 20th century and stock the BEST..............Time will tell.