^^^ yup tire tube pieces is what i used.
one piece over the intake manifold under the carb bases, bolt the carbs down over the tire tube
one piece over the b-pipe manifold, bolt the headpipe down over the tire tube.
basically replace your carb base gasket and b-pipe gaskets with pieces of tire tubes
i used a bicycle pump that has a gauge on it and pumped air in through the pulse line
don't forget to remove the flywheel cover when doing the test.
one piece over the intake manifold under the carb bases, bolt the carbs down over the tire tube
one piece over the b-pipe manifold, bolt the headpipe down over the tire tube.
basically replace your carb base gasket and b-pipe gaskets with pieces of tire tubes
i used a bicycle pump that has a gauge on it and pumped air in through the pulse line
don't forget to remove the flywheel cover when doing the test.