Ok so I have roughly $1500 to spend right now on my '87 coupe. It's a 5spd with 180k on the odometer. The car is still speed density with the following mods: BBK 3pc Pulley set, Motorsport 9mm wires, BBK Headers, Bassani X-pipe, Flowmaster mufflers, Eibach Sportline Springs, KYB Struts, and...