Hey Micah - I've tried to derive what 5 angle valve vs. a 1 or 3 angle valve is... but I'm failing. Care to explain that for me?
Also, what would new heads do for reliability? Are there many issues with swapping out heads or are they a pretty stress free mod? Are there any other mods necessary to make the heads work "right?" I.E. different spark plugs, A/F tuning capability, etc?
One last thing - does this change the compression ratio? If not, could you make the new heads change the compression?
