See an increase without the a new cam?

[Shotgun28]

When I finally get my new heads,intake,t/b and MAF sensor on my car, will I still see an increase without a cam at this point. I have as I stated before getting some awful cam installation quotes (600-750) and that will have to wait, and I would like the car as done as possible and possibly getting a custom cam. Will I still get the seat of the pants feel with the above....?

Heads=GT40 P heads
Intake= Cobra upper and lower
T/B= Ford racing 65mm
MAF=C & L 73mm

Anyone know how much it would cost approx.to get my new heads installed? I feeling slightly concerned with doing it myself. Thanks in advance...

Kevin

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91 LX Convertible Gray on Red B&M Shift improver kit,ASP red alum. underdrive pulleys, Richmond 3.73 gears, 1 5/8 Flowtech long tube Headers and off road h-pipe, Flowmaster 2-chamber cat-back with S.S exhaust, MSD 6A Ignition with coil,Cap and rotor, Taylor Pro wires, K&N 12" conical filter system, Jet stage 2 performance chip and just purchased some GT40P heads, looking at exhaust, Lentech Street Terminator plus on it's way...