It all depends, camshaft, cylinder head, intake manifold, carburetor and compression play a huge factor in where the engine will make peak power, and how long it will carry that peak power.
1 bad part in the balance of these components will make the engine suffer.
We build 383s for drag race and circle track designed to run 8000-8200 RPM.

Good heads, AFR, Dart, RHS, Brodix and Edelbrock are not to bad.

cnc dont see the balaning being an issue friend of mine built one for circle track lasted 3-4 seasons with nothing more then freahening bearings for his own peace of mind then when he rebuilt no major issues in side just went through it again for peace of mind so i dont know where your coming from

I am referring to the camshaft, heads, carburetor, intake manifold, these all need to be a good match to obtain great numbers.

I was not referring to the engine balancing it's Self.

[quote="cncmotorsports"]It all depends, camshaft, cylinder head, intake manifold, carburetor and compression play a huge factor in where the engine will make peak power, and how long it will carry that peak power.
1 bad part in the balance of these components will make the engine suffer.
We build 383s for drag race and circle track designed to run 8000-8200 RPM.

Good heads, AFR, Dart, RHS, Brodix and Edelbrock are not to bad.[/quote

1 bad part in the balance of these components will make the engine suffer.

read your own post

I did...
What don't you understand ?

MAKE sure to check your crankshaft for cracks when using eagle. Jmo..

There, fixed it to save arguments.

I agree with you also.