Do you know if you have factory roller lifters in your motor, or flat tappet lifters? My motor was from a 96 and had factory roller lifters, but I've read mixed things abut which year came with what lifter/cams. I know that everything 94+ is roller compatible, but some got flat tappet lifters, while others got roller lifters.
Reason for asking is if you are building on a budget and you have factory roller lifters you can get a ford E303 cam for pretty cheap (around $200 new) that will wake the motor up allot more than the factory truck cam. if I remember correctly it should play nice with the stock heads/valve springs/push-rods, but shift the power up to a more usable area for a car.