brand new short block problems, please help

[Camthebamf]

just replaced the bottom end on my 97 yukon at 165xxx and all was well, for the first 200 miles. then all of a sudden she began to intermittantly sputter and stall, no engine light but i threw my obd reader on anyways and found p0327 which led me to replace the knock sensor and connector. again everything was fine then 20 more miles and now im haveing the same problem but no code, any one have any ideas? shes all i got to drive thru winter and i gotta get this sorted before the snow comes please help.

thanx for reading - cameron

[Camthebamf]

she also has a new distributor, plugs, wires, fuel filter, and complete pump assembly

[EAk1500]

theirs a box on your air intake over the distibutor at least their is on my 96 k1500 and if thats loose or falls off i get the exact same problem due to the MAF that could be another thing you could check dont know why their wouldnt be a code tho

[cancritter]

knock sensor should be metal to metal...dont use teflon ect..something to check

[Camthebamf]

checked the box and its on nice and snug, and i didnt put anything onto the threads of the knock sensor when i installed it. thanx for the input tho guys