Yeah the A14 and A15 conrodsare the same just deak height is differant in the piston so thats why to take off that 40 thou, i asked baz the owner of Datsport here in South Australia, he said taking that much off the top is like stuff all and should be fine (approx 1mm)

I'm using standard valves but does anyone suggest any good valve springs for higher rpm (brands, part no. $$$)