Okay I'm debating whether or not I should keep this massive 4.0 Whipple or trade it or sell it and get a 2.8 Kenne Bell Mammoth Liquid Cooled. My issue is with the Whipple at 27lbs of boost and 21* timing it made 776 HP and 679TQ. We then let the car cool off for 3 hours and then put ice in resivoir bumped the timing to 23* and it picked up only 7 more HP. I called Whipple and they did not have an answer other than with my setup it should be making in the 850-860 range. When I contacted KB they agreeed with me and said that these numbers are pathetic on a 4 liter twin screw with the crusher inlet. Even if my car makes a little over 800 when its cooler, it seems really low for that size blower. KB says that the 2.8 Mammoth LC made 774RWHP on a completly stock cobra with a BAP and 28 lbs. What would ya"ll do?