Just a little throttle to 50 % throttle is no trouble and will not give vibrations btw. I am doing 28 mpg max now with uncomplicated driving and at times reving to max 7k, but only from time to time! Include to quote Only display this person #seven · Apr https://4age-20v-blacktop-for-sal79900.bligblogging.com/29610858/little-known-facts-about-4age-engine-sale