The easiest fix is to use longer servo arms, the anodized aluminum in 1.5" is usually adequate, but give yourself some playing room, 2" servo arms are probably best. You can also use the heavy duty Dubros.

We do NOT recommend the arms that come with most servos for any engine over a 35, there is always too much flexing with the standard arms, Heavy Duty Arms only..

We have ammended the instruction sheet to indicate this, and we will post this requirement on he website on the order page.

glad you guys like the whip...

let me know if I can help