A new prop will help ALOT with pulling and maintaining speed, if you are running the 13x13 and a good amount of ballast it will be a struggle. Lots easier to buy a prop than to cobble a perfect pass kit together.
84 Supra Marauder
Monster Tower
Monster Cargo Bimini
4 Kenwood Tower speakers (6.5)
4 Kenwood Interior Speakers (6.5)
2 Kenwood 6x9 rear seat kick panel
2 Kenwood 5 1/4 in dash
1 Kenwood Sub
2 2ch Kenwood amp 1 2ch Fosgate amp
2 4ch Kenwood amp 1 4ch Fosgate amp
1 2ch Kenwood (bridged) for sub
STRAIGHT OVER KILL.