Stumbling Start

Ok, so my truck as running a little shitty and was starting rough sometimes and was definitely misfiring. So I did cap, rotor, pcv, plugs and wires. This is on a 1998LT W engine. Cap is Borg Warner, Rotor is Borg Warner, Wires are Bosch and of curse I used Bosch Plat +4's (HAHAHAHAHAHHA kidding) I used AC Delco Plat's gapped at .060. Well other then starting everything else is perfect. Runs like a top again except for a stumbling start when I turn the key or sometimes I really have to crank it before it catches. I replaced the fuel filter no more then a year ago. I also cleaned the Throttle Body before I installed the new plugs and checked the K & N air filter and it seemed clean. Any other suggestons? Anything else I need to answer for you guys????

Check your MAF sensor. The oil on the reusable filters has a tendancy to gum up the sensor.

Cleaned the MAF about 10K miles after I reoiled the filter ;( Since last night it has seemed to go away, for now!!!!