What's a normal PSI for boost? Like on a stock 250 with a turbo, wastegate, and methanol injection? I saw a guy run a 250 with 5psi of boost and I think he got like 360hp and about 300 ft/lbs and then I saw a nova run with 16psi of boost and he got 390hp with 401 ft/lbs. If I just had a stock setup with just normal performance upgrades: cam, lifters, springs, intake, exhaust, carb, and turbo, what'd be a good boost for fair longevity and good performance?
69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.
