I have a Series 3 motor with Series 2 internals, Gen V, 180* stat, autolite 104 plugs, SP headers, will be buying an exhauast soon, and a ZZP PCM and having a 3800 knowledgeable friend tune it. Still not sure after a lot of research. If not, what size can I run, or what else would be needed to safely use a 3.4"

Thanks

*edit* car is an '4 Comp G and am also doing an EGR delete