Someone posted ealirer that your 1/8th time should be .2 faster. I have always used the 1/4 time divided by 1.59 and got really close. For instance, your 9.54 divided by 1.59 comes out to 6 flat for the 1/8th. Not exact but pretty close. Anyway, when you change the gears, does the 6700 happen sooner on the track the previous higher (lower numerical) gears? Something else to check also if you are using an autometer tach with the adjustable shift light dial, is that it is working correctly. I had a similar issure using the adjustable shift light and some how it was overriding the shift pill in my two step. Last things I would check is valve spring seat and open pressure and also make sure that the timing and floats are set correctly.