I've been keeping an eye out for any 87+ egr manifolds but they are just not common in my area and swap meets are pretty much for naught anymore. I may have my OE manifold bored out to the larger throttle blade diameter (54mm?).There used to be several choices for the '87+ intake, so don't forget good used as a cheap option. Iirc, the Holley Street Dominator was one that tested well in magazines.
Right now I just want some verified numbers to say one way or the other and the dragstrip is probably the best option I have.
I wish I had a place to install a chassis dyno.