1963 Valiant V200 Wagon

i was, but i have been having some problems with my headers blowing gaskets at the collectors. saturday morning on the freeway, one header blew out a gasket, and on the way home from my dads, the other one blew out. so i was back to open exhaust. i was pretty pissed. i took it back to the muffler shop today, they put in new gaskets. but i may have to take it to someone else if that doesnt fix it.