well guys i have had alot of partial throttle stumbling with my truck so far- so i unplugged the maf and it totally went away- well i went over all of my intake after the maf and found the culperite- i thought i had covered it all the way but the hole where my nitrous nozzle was, was open about a 1/4 of an inch- so im going to replace that peice 2 moro- i dont think the truck is where it needs 2 be @4 psi- it feels slower @ 3/4 throttle then @ full throttle- do you think that this is the culperite?

 

Sounds like it is the problem to me. The MAF is measuring air and with it leaking out downstream the PCM cannot adjust for it so it is stumbling. Boost will also leak out that hole and I think you will see it go up once you get it plugged up and get the truck running properly. Do you mean the truck feels faster at 3/4 throttle than full throttle? Once the air measured by the MAF equals the air getting to the engine these problems should sort themselves out.

 

yeah going to replace that pipe 2- GOT A KILL 2 DAY REGARDLESS- - check out the kills section