90 pounds
Zero lash then one turn in. (assuming this is a stock Chevy 350)
There's not one. You can't put them on wrong.
Most likely a problem with the carburetor.
That would be the 1st cylinder on the drivers side head up front.
There is a pipe plug in each head and at least one in the intake manifold that can be used for this purpose.
it will never happen
Yes, I have one sitting in the driveway.
NO.
There is one mounted on top of the starter.
it is in one of the valve covers
Driver side, front.
2nd one on drivers side