Originally Posted by
Maximo
97T is my guess...it doesn't do well at all in my modified engines either , same issues you are describing almost to a T...switch to a OS P4 or P5 and the issue should vanish ( thats my guess anyways)
i dont think he likes paying 12 bucks for a plug. he said the motor ran great on a p4, ill let him know...
thanks for the help neal...