I am proud to say that my 2008 AND 2010 RBmods Kangaroo engines both ran 1.56 ET's on two different cars at two different tracks within a week apart. These ET's are the IMDRA records as the quickest and fastest speeds from a .21 of any modder in a Funny car. Rick had tons of ideas and I was the test jokey and boy did it pay off. The funny thing is that there is STILL more power to get from the engines and we think that 1.52 or perhaps even 1.49 can come from these engines. I had a speed of 88 MPH on one pass but also had some 86, 85 and 84 MPH runs which were all within minutes of each other.