Welp, bad gas and put a hole in a piston in my 440 mopar...That's what I get for trusting dock gas with a 11.68:1 engine.

So now I decided, I really don't like spinning an engine 5500 for hours on end.

What if I built a 543ci engine and threw an impellor on it that maxes out at 4500 RPM's (or lower)

Does anyone have a A2-A4 impellor chart? The setup I am looking at calculates 658ft/lbs and 525Hp at 4500 RPM....