Hey thanks! Thats helps alot. My T.B. didn't seem to aggrevate the problem but the 76mm C&L mass air really did. I didn't even think of intake or T.B. leak but I really like the sounds of that being the problem

What do you think if the air tube from the smog pump isn't tightly welded over the new H-pipe air tube inlet? It was originally just clamped and I kept blowing it off. Then I had it welded on, but lookin at it just today it looks like just spot welds on couple sides and not all the around? Could that cause my bummer backfires?

And again thank you for your time!