Remove the air cleaner, vacuum lines, and heat stove flexible connector. Next, remove the carburetor, disconnect the exhaust pipe at the exhaust manifold, and take out the carburetor air heater if equipped. Detach the nuts that attach the manifold to the
Cylinder Head and remove the manifold assembly. Separate the intake manifold from the exhaust manifold by removing the three screws, then scrape away all traces of old gasket material from the mating surfaces. Use a new gasket for installation, and install the intake manifold screws without tightening them. Install the manifold assembly and snug the mounting bolts. Tighten the inboard intake-to-exhaust manifold stud nut to 200 in-lb and the outboard intake-to-exhaust manifold bolts to 240 in-lb, following the specified sequence. Finally, tighten the manifold assembly nuts, working from the center out to the specified torque, and complete the installation in reverse order of removal.