Talked to a Rep. at the Salt Lake Snomobile show. He offers 100 day $$$ back if the box doesn't deliver 80 RWHP and 15% MPG while towing! What do you guys think, and are anyk of you using the box with these results? Thanks, Doc 

You running any box now Chris?ChrisKringle said:Seems Realistic, A Jump In M. p. g. From 10 To 11. 5, And 80 Hp Isn't That Hard To Acheive With An Increase In Rail Pressure. I Have Run Dr. Perf. On Both My 555 And 600 Engine No Probs. Just A Simple Fuel Pressure Box, Can Even Wire To Turn On And Off With Remote Switch And Even Wire In The Dr. P Brake Controller/pyroy/boost Gauge With Auto Defuel On High Egt's. Something To Look Into. I Would Check On Ebay Most Definately For Prices, I Got Mine For Like Half Price Or Something. Fact', I Just Sold My 100 Hp Unit For The 555 On Ebay For 300 Or So. Check Around.