1st off I want to say hello. Obviously I'm new, but I see you mower racers are way further down the line using 390/420s as racing engines, so I'm here spying. With that said...
has anyone built a girdle for a 390/420 yet? If so, are you willing to share pictures? I'm having problems with block flex with an occasional failure and am looking for ideas on a girdle for next season.
Thanks in advance.