Rajay E trim Turbo

Hey guys, I have a good Rajay 325 E 10-1 Turbo here I want to put on a 318.
Does anyone know what it's HP limit is?. It's a little hard to find info on this old one but I have read on the net it will support up to 425 HP. I'm only looking at a max of 6 psi on this engine and 5000-5500 RPM max with no intercooler.
Thanks