head swap 5.5 6.6

Got a HF clone and a gx160 Honda. Gonna swap the head and flywheel. What exactly does the 4* advance do. I'm not using the piston cuz no good. Governer is removed. probably gonna use Honda push rods instead clones rods. What would be an estimate of HP and rpms. Been reading for 2 nights about...

I just bought a old 5.5 gx160 real honda.Anyways i wanna but the head on my gx200 clone to raise compression.My question is i just installed a 265 modified cam and was woundering if i should use the push rods, valves retainers exc. from the 6.5 clone or 5.5 honda when i swap the head ? The mods...