P1036 99 4.3 Silverado

[mfnorby]

early on my truck would lack power on the first acceleration of each key cycle I changed oil ,fuel filter and plugs swaped out cranksensor and camsensor in dist w good parts no change the problem got worse it started lacking power all the timeand wont get over 45-50 mph on freewayone time during this as it got worse it set a p1036 maf performance so i cleaned the maf still no differance i read the intake gaskets are a problem leaking vacume and causing problems that could set a p1036 anyone dealt with this ? any help ? thanks I drove around today with the maf unplugged and it seemed fine it was in limp in mode but ok, when i plugged it back in again it started bogging and no power. so it looks like the truck gets a new maf. bye