Oversize Valves # 2

Pix of my head cylinder with XXX OEM Valve 2 ~ 3mm larger over stock
Refer here for history
http://zc21s.blogspot.com/2011/04/over-size-valve.html

Poison to my circle of hardcore friends
This is a must have for unusual M16A
M16A with avg cams wont see advantage from this upgrade
Perhad with agressive cams