Hey all, I have a 95 Impala SS. When its hot out (90+degrees) my Impala begins to studder under even moderate acceleration. If I press on it too much, the car will simply die. I checked the schrader valve and i seem to have fuel pressure, so im guessing its something electrical. I replaced the Optispark, plugs and wires, so I'm not sure what to check next. Any ideas?