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You will not be making much horsepower with that. It is not split port which will hamper gains. Also you would need a custom upper intake manifold to bolt it up, a new hood, fuel pump, injectors, probably underdrive pulleys if you don't want to blow up your stock engine, gaskets, and a couple of other things that are escaping me right now.
 
You will not need a custom manifold. But you need a lot and a lot more stuff. Check my thread on this page or the next in this section and there is links. Its a good cheap upgrade for single ports but you need a lot more than just the sumer charger. With the super charger you only have about 10% of what you need.
 
Go to the Use full V6 links sticky. I have a M90 swap thread w/ lots of links to the info.

Basically you want to buy an entire supercoupe motor. Its much stronger then mustang single ports. I wouldn't really recommend making one to work on a stock mustang 3.8.

And as for the power comment and split port ****.
**** THAT.

A stock supercoupe motor alone would probably show up a stock split port all day. And have a sick blower whine to it.

But if you have the motor, you might as well do a bit of work on it before it goes in:
Porting/Cam (air flow stuff)
Upgrade your fuel pump and Id put in a bit bigger fuel injectors if I did all that.
Run some long tube headers O/R or high flow cats.
And run a bigger better A2A Intercooler in the bumper and that thing will make tons more power then the stock ratings.

But just an exhaust and IC upgrade alone would be a huge increase.
Id honestly rather do a M90 build then a split port m112 build.
 
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