[Michael C Henry]

Ever experiance carbon fouling? Had a friend with a 69 GTO.When it would appear it would start out missing at higher rpms.The higher the gear the lower rpm the miss.Like 5,500 in 1st 5,200 in 2nd and 4,900 in 3rd and 4,500 in4th.As it got worse the miss would start at lower rpms. New plugs would make it all better. Timing ,plug temperture,ignition etc all affect .