410 LA small block will not rev past 6000

PRH said
I’m giving the owner the benefit of the doubt that after driving the car for 7 years…….he knows how the engine feels/behaves.

My 383 made peak power at around 62-6300, and was down a solid 20+Hp by 7k.

From the drivers seat that thing would rip right up to 7k like nothing.

But according to the dyno graph he provided it's hp peaking around 4800 rpm 2nd peak around 5200 so if it pulled to 6000 rpm that's similar to the 383 pulled vs peak hp rpms.