Wow, you've got 160 cold, with that 284? That's pretty awesome. But it's also gonna be a bit of a problem to downcam.How is that 160 even possible? Did you machine the decks or the heads,or back way off on the lash?
With 8/1 Scr and an ICA of 70*, your pressure should be like 115 or less and yes, that would make a pitiful bottom end, and with 3.55s, that's a serious mismatch.
So in my head something does not compute about the 160psi number.
But if 160 is correct, then your Scr has to be up around 10.6 according to my calcs. And if that's true, then you might be in a pickle.