you can make a boost like tester from home depot stuff.
http://www.mr2oc.com/showthread.php?...ght=boost+leak


i also recommend getting new ignition components. rotor, cap, spark plugs, spark plug wires. dont skimp out on that stuff. get OEM, its the best. dont even step foot inside an auto store for the plug wires, cap, rotor. i once tried the Bosch Napa wires and they didnt even fit properly. I got a pair of new OEM red wires and they fit like a glove.