I got my exhaust pipe and muffler put on the truck yesterday. This is a single exhaust on a 230 with stock manifold. I was trying find the torque spec for the two bolts that hold the exhaust pipe flange to the manifold. The last thing I want to do is crack or break one of the threaded exhaust holes in the manifold. I have two studs into the exhaust manifold, course thread into the manifold and fine thread for the nuts that secure the pipe flange to the manifold. I have the donut between the two. I tightened them up to less than 10-lbs right now until I find out.

Thanks,

Tom
1965 Chevy C10, 230 straight six, 2WD, 4-speed manual