To start stroke and bore that mofo to a 2.6L. If you want to go N/A get some 13:1 pistons and get the head shaved down about .080. That will put you near the 14:1 mark, beware you going to be needing to run Av-gas or and high octane gas mixed with some 93. Send the head off to a reputable engine builder and have to do the narlist port and poilsh job on it, install larger valves, and a 3 angle valve job. Get some H/d valve springs, Titanium retainers and shims, and a cam of your choice but make it good one, gotta go big if you want big HP. You can add nitrous, but I am a big disbeliever of nitrous, I like all motor. I dont know how much HP this will make that I listed above due to I'm new to the 4 cyl scene, but im pretty sure it will pump out plenty. I may completely wrong about all this but I'm sure somebody will correct me if im wrong.