I have replaced the distributor cap, spark plugs, cold start valve, maf sensor, fuel filter, and air filter...I replaced the head gaskets on this truck and the guy i bought it from said it ran fine till then...I have checked for vacuum leaks but all i have found is the bvsv broken so i coupled those two lines together...Would the bvsv cause the truck to not want to stay running if it is broke. Any advice would be appreciated..:saw: