The camshaft controls the firing order. Switching the computer will not change the order that the ignition fires. The plate on top of the intake manifold is held on by 4 screws and you can bolt it onto many different 5.0 manifolds, so its presence is meaningless. Go back and re-read my post for help identifying what you have.
Thanks Jrichker...looks like it's a non HO motor...just out of curiosity, what am I missing by not having the HO version...is it alot and is it worth upgrading? Sorry to be so "green"...I am a super newbie with a desire to learn.