Hey guys,

I've got a Vortec TBI build in progress, and I was wondering which PCV valve to use. I have an 1988 GMC sierra that I'm rebuilding, so I bought a new vortec 5.7 long block, and put a vortec/tbi intake on it. It's got a mild cam(comp cams xe258hr), 1.6 rollers, nothing too crazy. My question is, should I use the pcv valve made for the 88' tbi engine(FV184), or the one for the 96 vortec engine(FV178)? I had a friend tell me a while ago that using the wrong pcv valve on your engine can lead to leaking gaskets and seals, as it helps vent the pressure in the engine. What do you guys think, considering it's both vortec and tbi?