Alright well i managed to pickup a low miles 1989 daytona shelby

for a decent price and i have some plans to get her into the real power (not that its slow right now!)
It was in a little rough shape when i got her, just general maintenence things, as well as it had been sitting parked since 93!! this consisted mostly of, plugs, wires, a couple harness fixes, oil, filter, vac line redo (still need to do it again and get a new 4 way splitter that stock plastic one SUCKS!)
Anyways the car has been returned almost completly to stock, with the exception of a couple more things i need to track down and fix (all minor should be done in a week or so)
I would like to take this car to the 350WHP range, the following is my plan.
Get a spare motor+trans+turbo.
Rebuild the bottom of the motor (though these motors are already built like tanks) port+polish the head, intake, exhaust manifolds all to match and as far as i can. Install the larger 52mm throttle body. Keep the exhaust side of the turbo the same (though i have been reading they benefit from a larger housing? (i dont know alot about turbos honestly) if they do is this something i can do or would i need to take it in to be done? also get a larger compressor side put on the turbo, maybe a new impeller as well that will flow me into the 350HP range, though i would like to keep the already fast spoolup time (hence keeping the stock exhaust side housing/impeller)
Install the biggest FMIC i can find run 3" mandrel bent stainless for all the intake, upgrade to a 3" swingvalve and run full 3" stainless mandrel exhaust, to a high flow muffler, as well as at the bottom of the down pipe i plan on coming up with some kind of actuated valve that i can open with a switch or have it open at WOT to dump the exhaust tot he ground bypassing the muffler. Also a 3 Bar Map +40's and i would estimate about 20-23PSI of boost. I dont need a computer i can take care of all that, as well as all the mix tuning for the more flow.
This is what i have come up with, just curiouse what you all think, and what some of your courses of action would be.
I will also be running 2 cals, one for the street (probobly 8PSI) and one for the track (max, 20-23)
Goal is to have a daily driver that will be a mean ride in the 350Hp range.