I've done two of them but with the help of my brother who is a master mechanic and has a four post car lift and wirefeed and TIG welders. I built the harnesses myself which took about a week each as I was very methodical and double checked everything. Getting parts, replacing manifold gaskets, sensors, fitting up the exhaust took about another two weeks or so. My biggest time/frustration of the entire swaps were securing the passenger side correct axle lengths. It took many trips to a pull and pay yard and a machine shop on my second one (87GT) to get it right. My suggestion is to test fit the axles while the engine is on the ground before final installation in the car. Note the strut angles, etc. before tearing the original apart and you can get the new ones close if not perfect before re-installing. Also, be sure to insulate as much of the exhaust you can and also test fit the exhaust and muffler installation as much as possible on the ground. With the four post lift we were easily able to raise and lower the car as needed to test fit all the components making it easier and faster. We secured the front end of the cars and hung the rearend over the end and used a heavy duty metal a fgrame to hold the chassis under the car. The whole process took about one month after probably another month of a lot of planning and securing of parts. I used west coast Fiero for the mounts, lower alt. bracket, tensioner, etc. for my 88GT, and Fierorog's same parts for my sons 87GT. I have no problems with either, it was just a timing thing for what was available when I did the swaps. Getting each of the A/C swaps done also took some time and forward planning to secure the correct hoses, etc. but they both work well and were worth the effort. Both vehicles were done with the 4T65EHD automatic transmissions. I had the PCM's done by sinister performance, Ryan is very good and reliable, he will answer all of your questions. I love having the performance shift option just in case you need to use it... Both vehicles get about 20 MPG average unless you stay in the throttle too much, but for basically double the HP over the 2.8 and to achieve the same or maybe slightly better MPG it is so worth it. They are a blast to drive. Curtis
[This message has been edited by Curtisk1060 (edited 04-16-2016).]
