86 C20 5.3/4l60e swap, MANY QUESTIONS!

[bloodybigblock]

So ive decided that posting many threads were annoying and took up room for anyone else with their own questions. I have a 86 c20 2wd with a 454/th400. I found a 01 DBC 5.3 with harness for a great deal. I have searched and searched hours and hours but all i can find is 67-72 info. I plan on having a CAI, electric fans,and a true dual exhaust since this wont be a hot rod.

1. What motor mounts? I'd like to run the stock manifolds and i want to keep my a/c.
2. I plan on lowering the truck, will my truck pan cause issues? Is there motor mounts that can raise the engine?
3. Best place to send my harness and ecm?
4. If i do my own harness, can it be driven to get the tune an hour from my house?
5. Any issues with running strait manifolds to make it to the muffler shop?


thats all the questions i have for now. Any help would be appreciated. Im ready to start buying parts for this thing.