I have a 91 4.0 in my xj. I also have a blowed up 2000 Grand Cherokee 4.0 setting in the shop. I was wondering if the intake manifold of the 2000 would be an upgrade for my 91. My 2000 is a complete motor, minus block, has a fist size hole in it. Would the 2000 intake have a noticeable difference? Or just stick with the log style?