Reply to "Water and/or methanol injection?"

Steve,

that's 430 bhp at the crank. That's a good number, especially to reach it at revs as low as 5900 rpm.

In the '70s & '80s 450 bhp was the target number for a max effort Cleveland street motor entailing a blue printed motor, head porting, solid lifter flat tappet camshaft, Holley strip dominator or Blue Thunder intake & Holley 750 carb. A motor like that would rev beyond 7000 rpm.

Your motor only needs a hydraulic roller cam & a new set of pistons to achieve a crankshaft bhp number closer to 480, as long as the carb, ignition & exhaust are up to the task.

Of course, your carb, ignition or exhaust may be holding your motor back now.

your friend on the DTBB, George