i'm looking to do a cam and stall in the near future on the RST, i'm thinking im going with the TSP228R cam with PRC dual springs, 7.4 pushrods, TI retainers, ARP head bolts and a 3k-3200 circle d stall, my question is: is it necessary when i change the head bolts to completely pull the heads, replace the gaskets and have them decked, or if i remove all the bolts without removing the heads can i reinstall the ARP bolts and be done? truck has 44k miles on it. Just a question. thanks Guys.