273 Commando
Mine was fully documented and I didn't want to alter it so I did keep the original 2V manifold. I would have loved to drop a performance 4V manifold on it but didn't. I did change it over to dual exhaust running 2-1/4" (mandrel bend) from the stock manifolds out the back. New valves, same rods, balanced, 3-speed on the tree, 22 MPG highway. I'll see if it running is is still out there in cyberspace where I posted it.
Mine was fully documented and I didn't want to alter it so I did keep the original 2V manifold. I would have loved to drop a performance 4V manifold on it but didn't. I did change it over to dual exhaust running 2-1/4" (mandrel bend) from the stock manifolds out the back. New valves, same rods, balanced, 3-speed on the tree, 22 MPG highway. I'll see if it running is is still out there in cyberspace where I posted it.