my 340 had peak hp at 6200 withthe air gap the dyno shows the air gap peaking in the 5500-5600 range with the 426.I can spin the 426 to 7000 but it ain't making any more power . everone thinks it's the intake holding it back guess i'll find out when i get the victor or super victor . I will report back when the intake is changed and tested .
Thanks all for the suggestions
