Should I change my throttle body?
 

So my 95 has a 75 mm throttle body from what I understand this is to big for a non blower 5.0l . I want to get the care dyno tuned to try and get rid of the egr and smog pump coads as well as getting some of the bolt ons to perform. My question is should I change my tb to a smaller one?

All depends on the supporting mods really. The 70, and 75 are the norm when upgrading.

It's got cold air, headers, undersized pulleys, egr & smog delete, msd ignition (not sure I like it), the 75 mm tb and it's running 12° advance on premium. And not a engine mod but it has what I asume are rigidity adding bars on the frame and across the engine bay.

I'd leave it.

I would leave it. Have any other mods planned for the engine? Upper lower intake, cam, heads?

I'm gonna see how well I can get it running before I sink a bunch of money in to it. I may do some auto cross with it for now.

75mm is fine, done waste money where its not needed. What size is your MAF?

Do you mean the housing or the sensor. The housing is part of the bbk cold air but the sensor looks stock.