i say move your timming back to stock and see what it does
on a side note send that 240 out for some porting and any of them 400ex's will go home all but hurt
I did want to get it ported but i slacked and started my build late and feared i wouldnt be ready to ride soon enough. this coming fall/winter im tearing the jug off and sending it to get ported. Ive seen some work on here from ken thats pretty impressive and ive herd nothing but good things about flotek and wildcard also