Will the upper and lower intake from a 95 cobra fit on my 95 gt?
 

I can buy one right now for 150 with a 1in spacer and the whole wiring harness. Will it fit no problem on my 95 gt? and will i feel a difference?

yes it will fit. you dont need the harness though.. or the spacer.

Will i notice any power with the spacer? Also is 150 a good deal?

no... hence why I said dont run it.

yes, $150 is a good deal. so long as the manifold isnt destroyed

Do not believe your existing strut tower brace will bolt up with the Gt-40 intake.