looking for 2.75 intercooler piping for a GSR

FMIC 2.75 inlet and 2.75 outlet- (looking to support 400-600HP)

Wanting a BBK 70mm intake manifold and matching 70mm TB (brand doesnt matter)

i will have a complete gsr head that i am willing to trade or part out. really looking for BBK for the IM &TB. need asap. looking to do IC piping and FMIC first.