cylinder head power rating.

[newbstar*]

When does the oe head/valves become restictive? Also any real gain in modding the squish area for performance, i know it can help stop det!

[SCHWARTZ]

Do you mean lowering the comp ratio more by missing squish area?

[newbstar*]

Do you mean lowering the comp ratio more by missing squish area?

As in motor bikes they play with squish to get better low down power or higher end! I already have part of it machined to stop detting, lowering the comp yes. Peoples tips on the c1j head not the piston.