Is anyone running ported heads, plenum, and lower intake on there 2.8 or 3.1? I have just started porting my 3.1L and was wondering is anyone out there has done the same thing and what type of performance gain I should expect. I am also having a 3 angle valve job done. I already have a free flowing exhaust, and my air intake is on its way. Are any of you guys running a power chip and do they make a big difference on a 3.1L? Whats brands are you running\what brands are the best. Thanks