no guide per say, just doing so with the things ive read on it. did a egr delete, balance shaft delete, vct (vvt?) delete, oil pan and valve cover swap, as well as the 2.3 intake cam swap used a 2.3. to 2.5 intake throttle body adapter also... as for tune, from what ive read it'll run fine on the factory 2.3 tune. (unless you decide to run boost etc.) I was looking into turbo set ups but its not quite in the budget at the moment. just waiting on weather to break so i can get it outside and put it in the car. (its been raining like crazy here and im working outside so it kinda f'd me)