do chips work?

do chips really work are they worth it please let me know thanks

they are only worth it if you have heavily modded the engine and need to recurve the timing an fuel. basically all they can do stock is run your redline up higher so the fuel wont cut off, but by that time your cams have run out of thier RPM range. so there for you gain no power.

so if you get cams designed to run at higher rpms say up to 8K a chip will give you more power?