The cheapest HP is by removing weight.

Every 100lbs off is the same as adding 10hp.
http://www.longacreracing.com/images/products/scales/72594.jpg
Simple to use - just push 2 buttons to get everything you need!
- Push one button for all 4 wheel weights
- Push a second button for all partial %

Heavy duty Red cables and silver AN connectors
15" x 15" low profile pads with 1500 lb. per pad capacity and convenient carrying handles

http://www.longacreracing.com/images/products/scales/72905.jpg

Roll your car off the scale pads, then back on to release any tire bind or side loads for more consistent readings
All aluminum construction
4 swivel adjusters for quick and easy leveling
Set of 4

http://www.longacreracing.com/images/products/scales/72544.jpg

2 ramps up for easy roll on and 2 adjustable bridges to connect front and rear scales. Durable, quick to set up, light weight and easy to transport. Adding the optional extra down ramps for a pass-thru system.

Later,