It depends, of course
AKA, the heads, cam, intake, exhaust system size, carb sizes and actual weather that day will determine how much power it can make.
My first pump gas 400 stroker motor made 612HP at 5500 RPM and 644 Ft. Lbs, at 4500 RPM with a set of mildy ported big valve 906 iron heads with a custom ground Comp Cams solid roller cam with 260 degrees @.050 on the intake lobe with .420 lobe lift and 266 degrees @ .050 on the exhaust lobes with .409 lobe lift ground on a 108 LSA installed at 106 intake lobe separation using a low deck dual plane six pack Eddy intake with 1970 440 six pack carbs
that motor exceeded my wildest hopes, it flat work well
i hope yours does too