Finally we found the problem. Apparently Edelbrock does not tell youin the cam and lifter it (ust on thier web site that I have seen so far) that you have to use either adjustable rocker arms or pushrods to eliminate valve train slack. Without eliminating this problem, the valvetrain does not create enough flow and produces a ticking (whici I never knew was there since I havent heard the car yet) and excess heat.
Thanks to everyone that tried to help me out.
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1990 5.8 / Edelbrock Perfromer Intake/ Edelbrock Performer RPM cam and lifters/ Edelbrock Performer street pump/ Edelbrock timing gears/ Ronald Boudreaux custom headers and exhaust/ Flowmaster 2 chamber mufflers/ March Performance billet aluminum underdrive pulleys/ MSD billet distributor/ MSD 6AL ignition box/ MSD Superconductor wires/ Energy SUspension polyurethane engine and transmission mounts/ Ford Motorsports blue silicone hoses/ GDI 3 core radiator/ Carter 625cfm carb/Maximum Motorsports