I wish someone could test this, but I'm willing to bet winter blend here in Michigan can replace a full size intercooler, and summer blend is comparitive to an intercooled car on race fuel. I had plenty of headroom to pulley down safely. Problem is, I sold my 2.8 and I don't have a belt that will fit my 2.6 without an I/C. I will for sure be shoooting for 350whp soon.