Dang it Brian, you may very well make me eat my "no intercooler ever in my hot-air" words. Course, won't be the first time.
With a integral wastegate 3" dp, and a intercooler setup that utilizes the stock hot air location turbo in your catalog, I've got a feeling you might make out all right on this one. Big concern will be price, I know you certainly can't give this stuff away, or take a hit on manufacturing cost, but if prices are at least low enough that the rational for just converting over to the 86/87 topend is not a concern, then.... success (I hope)
Heck, about the only thing left I'll be able to complain about is bolt-on turbo selection for us.
fwiw, I personally think the poston headers are a good design, but certainly wouldn't complain about having more options. The poston headers where one of the first upgrades I had done to my completely stock (at the time) 84 gn. My stockers where cracked in several places. I looked at feedback on the postons. Some of you guys where happy, some complained of cracks, Some complained of sloppy welds and had the pictures to prove it. So I decided to call postons and asked them to check the welds over real good before shipping. I politely said if I didn't find them to my standards, I would leave them in their packageing and promptly return them. The welds on the headers I recieved where all beutiful welds, I've got about 1300 miles on them with no problems. (knock on wood). I would recomend the same thing I did to anyone else thinking of buying them. If you don't know good welds from crappy ones, then find somebody who does before you install them. I think somebody posted awhile back some pictures for comparison of differant headers. You can easily see just how much better of a flow design they are compared to the stockers. My turbo had a definite quicker spool up, and the car did want to pull quicker, but would stumble until (I'm assuming) the fuel would catch up. A walbro 340 and adj regulator solved that.
I have recently installed a custom made 2.5" all stainless steel 2 piece dp with integral wastegate. That alone made the car feel like it had a huge weight off its back. I had to retune to start getting more and more potential out of it, but, no duhh
I'm not going to speak for anybody else, cause I don't know if anybody else is as anal retentive as me when it comes to fitment and tidyness when doing upgrades on my car... (and nobody else works on my car, ever! I even made up a jig from the procedures laid out in the factory service manual to do my own front-end alignments, figured since i've got 3 of these cars, why not?) back to my point,... I sure hope that these 3" pipes that may potentially be built are a good fit. I don't know how the mease pipes fit, but the few of the 3" pipes that lee thompson built that I have seen (in pictures, only one in real life) all have pretty good size dents knocked into them to either clear the control arm, or have banged against it. Lee thompson is A1 pro, and I know builds good stuff. I am assuming the pipes may have been put on cars with really bad motor mounts? And aren't you taking chance of false knock with the pipe right on the control arm? My 2.5 is a pretty close fit, but a 3" can be safely done with enough clearance from everything even with some softy motor mounts (imo).
I dunno, just kind of throwing my thoughts out there, Usually when I have a thought, it gets lonely
I also would nominate to bump this thread weekly, or make a appropriate sticky annoucement. There have been attempts at one-off dp orders before just in the last year and half that I've been around, but they all have been pooed on because of price. if gbody parts can make it happen and make it affordable, and make it a good quality fit, then Jerryls first post is certainly right on. No more excuses