I did find that the vacuum fitting from the manifold to the fpr had a crack in it and was leaking. Fixed that and had my fingers crossed buy still no fix

I have aeroforce scan gauges and they read in lb/min. With a converter shows g/s to be in the neighborhood of 430ish

 

So I got a chance to mess with it a little bit this afternoon. Sprayed all around the intake, and vacuum ports, fittings, piping after the maf, anything I could think of. Didn't notice any change or the fluid being sucked in.

Something did however cross my mind. I swapped the pcm for the tune for the 80e, but didn't have to do a crank relearn. This is the first time with a swapped pcm I didn't get a code for it, just thought I was lucky. Could this be the issue?

Also, did a little reading online, and seems it could possibly be an exhaust leak? Any chance of that? I really don't know, just didn't seem like that would cause a misfire.

Thanks for the help so far