i have a 5600 converter in good air but this time of year its more like a 5400. Before i changed gears i was trapping at 7600 in the 1/4 and in hi gear before the 1/8. since i didnt run the 1/4 i cant tell but by rule of thumb its 300rpm for every gear ratio. so i'll say in the 1/4 i should trap about 6700