Intake Leak

Are the heads the same angle? Something read that the intake popped up when the right side bolts were loosened. Even .2 degrees, may prop it up. These manifolds dont bend even under 35 ft/lbs of torque, i broke a commando 4bbl trying to torque it over a 318 block dowel (duh!) :-(
I didnt even see the last page of posts so if repeated a prior post question it was in error.

Something to try if you have the material. Put a screw in schreader valve into a engine hoist plate. Drill a .625 hole and install it. Pull rocker shafts, pushrods and install plate over carb gasket. Pressurize intake to about 15 psi (egr allowing ) and listen for leaks from heads. You should be able to find leak with stethescope. Maybe you have a crack? I found a vacuum leak in a pipe plug doing this along with soapy water. Yours will ge harder if its under intake as expected.