Can anybody tell me what it takes to convert my 4age big port to small port? I got the head, intake manifold and the ecu and lume...But will my big port headers fit straight to the small port head, and any other things I may need? And if I were to put higher comp pistons, what else might have to be done??? I want to get the most out of my 4age and to have peice of mind that it wont be dieing on me anytime soon... after i have built it ofcorse. Any input on this matter would be great. I will also be make my build thread to share my 86 with everyone soon, once I pull my finger out and get some pics haha. Thanks.