94corolla

is there anyone here who can help me with my engine conversion/modification.
i own a 94 corolla with 4afe engine is there a way i can increase its power, i know that its possible to swap it with a 4age engine but i'm not into whole engine swapping i want to keep my stock. is it possible to swap my 16V to make it a 20V or swap the heads to a ge head? is it advisable to add a turbine system or any other mods? do i have to change my ECU if i have the head swap?

jawberger

http://www.automotiveforums.com/vbul...d.php?t=135881