Get a spare engine and see how much boost a stock 250 will take before blowing apart.
Think of the fun you could have!
Snowman has seen 20+ psi or so when he first got his stock long block turbocharged. First engine.
He then settled on 15 psi, but had no idea it was detonating.
Straight pipe exhaust, no muffler, no timing retard, no intercooler etc.
Second engine stock long block, lasted for a little bit, had an intercooler, still no timing retard devise, loud muffler less exhaust.
He has more details about his adventures on turbocharging.
I would say, 15 - 20 psi, (guestimation) control detonation, run methanol injection & the best pump gas you can put in it.
I'd say, throw on the turbo, just run low boost & avoid detonation.
MBHD
