That's what I thought, it took me like two hours to tighten that back bolt closest to the firewall where the plenum bolts to the lower intake manifold. That was with the hood cowl out too. I don't know why it was so hard. It wasn't that bad coming out but with the new engine mounts I put in the engine is sitting higher and closer to the wiper motor stuff on that shelf under the cowl. Is it easier to pull the blower and plenum out all as one? That is what I did before so I don't even know how the plenum seperates from the blower. I can't believe how some people on here have gone to the valve covers a dozen times for adjustments and such, I guess you get good at it the more you do it.