Well I didn't need to pull blower. Rubber pcv gromey on bottom of thunder pipe got sucked in but I found it sitting behind the throttle body right inside plenum, not shredded up at all.. Got real lucky. I did get eve thing apart though. But I have a question. How the **** are you supposed to get the last 2 nuts off under the powerflow?? On mine there nuts, not a bolt like the front. It's a weird size like 16 or 17mm. Is there a trick? No socket or wrench will reach with any pulling power.
those are studs because you cant fit a bolt down. The plenum has to be installed on the blower before installing the blower on the truck, so you can't drop bolts in. So the powerflow requires 3 studs, so you can drop the blower down onto them, then thread the nuts on. You need to use a 17mm open end wrench to get them off, but since they're jamb nuts on standard all-thread, the all-thread typically distorts the threads when the jamb nut is cranked down, and locks on the stud, so they'll usually loosen the entire stud when you go to loosen the jamb nut. Then you have to squeeze needle nose channel locks to grab the stud beneath the jamb nut once it's up far enough, to get the jamb nut free'd off, then you have to thread the all-thread stud back down by hand, and usually the sharp edges slice fingers lol.
Long story short I cursed at those one too many times and finally ditched all the blower hardware for ARP. Now I have 8 ARP head studs that match the thread pitch of the stock bolts, and run ARP 12 point nuts. The ARP studs have an allen hex in the tops, so I can lock the stud in place from moving while I loosen the ARP bolt with a 13mm ratcheting open end. Works 1,000x's easier. It's like $100 in hardware though, and you have to run an IC spacer or the studs will be too long. Worth it all IMO though!