Originally Posted by Hybrid_Ej
Put on my SS Autochrome manifold for now, jus to get me out tonight, and well, the boost is spiking like crazy.. What would cause this? Maybe the port where the wastegate meets needs to be opened up b/c it's alot smaller than the old log manifold? I have no clue why it would spike so much, but it hit 20psi a few times, lets just say.. thank god for boost cut

That vehicle has a 2 bar map sensor which doesnt read boost past 15 psi hence you do NOT have a boost cut in place....