I have a 1990 gsx and i have a extrude honed intake mani, 2g ported ext mani, ported head, 3'' exhaust, external dump o2 housing, Evo injectors, evo m.a.f. ... Im just getting my front mount i.c setup on, im having a chip made for my ecu, so im wondering if i should go with a recirc or...