Help spark plugs shot! Options

[bdog_v]

Hello my 94 GT celica has been sitting for about 6 months stored and today I started it up changed oil and it ran fine. Later today I went to start it and it fired up and then died after about a minute. To my surprise the spark plugs are looking shot and they only have maybe 2,000 miles on them. I have champion spark plugs and they look as if the center has worn away to the point that the gap is all off and I need new plugs so my question is

-What spark plugs last the longest and give good mileage? What should I buy...




-Also I run a straight through exhaust with a header and a magnaflow muffler ,plus a cold air intake. Is it possible I was running too lean or hot those 2,000 miles and wore away the center electrode. 3 of the plugs are redish brown and 1 is grayish white on the insulated porcelain......

Thanks, Brandon

[bdog_v]

Pulled fuel filter in engine bay, it does not seem to be clogged... I am lost any ideas what to look for specifically. All my connections seem good. Is the fuel pump in the gas tank? I have a fuel pressure gauge but I can't find a fuel line I could tap into as they all have the o- ring connection on the end instead of a plane rubber gas line hose.... I am lost....The chilton manual doesn't list a fuel filter in the gas tank??? Is it only on some models??? I have spark as it will idle and on occasion rev up. I just seems fuel starved...