How to test fuel pump? How to attach pressure gauge?

pull a vacuum on your vacuum operated accessories (distributor, EGR, etc) with your new vacuum gauge and your mouth. plug T with tongue and watch gauge. It should not fall or else its a bad diaphragm in the tested device. Distributor is a price suspect. Also start motor with gauge in distributor vacuum line. tell us what it reads or does (vibrate, wander, etc) Valuable stuff. I dont suspect a poor pump would cause a poor idle unless the bowl level is very low or very high. Could always turn the idle screw all the way in then start from scratch at 1.5 out. Make sure the carb air bleeds are clean. Today's gas sucks *** when it comes to sitting around in a carb. An electric is almost a given only to turn off and let the motor drain the carb at the end of the day. Flip the switch 5 seconds before you start it and hit the road, no dry cranking to fill the carb again worries.