tymerider

I'm looking for some advise regarding a 280ZX that I can't get started. The car is a fuel-injected '79 280ZX. The car has been sitting several years. At the time is as "stored" it was running, however nothing was specifically done to put it into storage. I've put 5 gallons of fresh gas in the tank (though did not drain it prior to adding the new gas), I can hear the fuel pump working, and there is spark at the plugs. When I first crank the engine over, within the first couple turns of the engine it sounds like its going to start and it seems to almost catch, however it doesn't start and then just cranks and cranks. If I immediately try to crank it again, it just turns over and doesn't come close to starting. However if I wait 30-45 minutes and then try to start it again, once again, it almost starts after a couple turns, but again, fails to start and again just turns over and over without starting. The above pattern repeats if I wait another half hour or so and try again. THere is NOT an obvious smell of gas which would indicate flooding. So I'm not sure if its getting too much gas or too little to run continuously. I'm guessing some component is probably gummed up with gasoline residue after sitting several years. Can someone give me the most likely components to look and and clean or replace? Thanks, Doug