87GN,Comp 206, 1.94/1.60 int/exh, port work, TE-44, Fact IC., MSD 50lb inj., 2800 converter, LT-1 MAF. Stock headers, TH down pipe, 3" Exhaust. TT chip.
It depends on how close that 2800 convertor is 2800, if its a ptc convertor than it will work just fine. If its a red stripe 12" convertor, the car will be a little laggy down low(a friend of mine has the 3000 12" orange crush and the 6152 turbo) His is a little sluggish down low, but it makes it so the car can get rolling before the car gets really really wicked fast.
2nd gear it shreds the drag radials as its going.
I would go for it if you can get a good deal on it.
My buddy also has that same cam, downpipe, maf, chip and 3" exhaust as yours. He has a powerstroke intercooler.
Get it and let us know how it works for you.
BW