Nov 2, 2002 #1 S smallv6 Still in Block Learn Mode Joined Jul 20, 2002 Messages 527 What are the benefits of aluminum race heads with big valves and full port/polish. When should you go to these at what point in mods. Also what increases would you expect to see in horsepower.
What are the benefits of aluminum race heads with big valves and full port/polish. When should you go to these at what point in mods. Also what increases would you expect to see in horsepower.