I'm hoping for only 9-10psi, the m112 has a higher compression ratio and its a 200k mile motor so I don't wanna blow it up quite yet, I'll be sure to let you all know how it goes. I'm currently waiting for a new thermostat housing because the stock one gets in the way. I'm also adjusting the intercooler set up so my hosing doesn't kink and figuring out how I should wire my pump.