What Mod with new heads.......

[Shotgun28]

Okay I just ordered my New GT40 P heads and I am limited financially, after getting my Lentech Tranny and the heads.I am trying to figure out within $500 what mods are the most important with my new heads. I was thinking Camshaft, but that will have to wait I am getting some awful quotes to install ($600-750, just in labor) so I was thinking either a Cobra or Trick flow intake $399, and a new 65mm Throttle body, and then when money rolled in (tax return) MAF sensor, 24#injectors, subframe connectors, 190 lph fuel pump. I want to do some under the body work, but I have no clue what is what to be very honest. Casters,struts,springs,control arms, except for the springs and shocks, I couldn't tell you what was what.
Tell me what you would do with the $500 to add to the heads. THank you.

Kevin

P.S is it difficult to change heads with a friends help?

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91 LX Convertible Gray on Red B&M Shift improver kit, March underdrive pulley's 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 Lentech Street Terminator plus on it's way...just ordered some new Red alum pulley's. Doing some big shopping of late, I will keep you posted.