I have just over 2K miles on a 94 Buick Roadmaster power plant swap into a 93 Saturn wagon. Engine and trans are stock with all new sensors, MSD 8.5 wires, fresh sonic cleaned injectors flow tested to original specs. New pressure regulator. 44psi with vacuum disconnected. Opti new with original Mitsubishi pickup and disc from original unit installed. Everything is working really well except for a slight stumble during cruise speed, at slow or fast conditions. (Light throttle apply to maintain speed.) I have been using Scan9495 and recently EEhack to work through the teething issues all projects tend to have. I'm hoping someone with more experience with this data can shed some light on what's going on. The data is from my morning and afternoon drives to and from work. City and highway conditions. The VSS data is 23mph faster than actual due to rear end ration and tire diameter. Thanks for the help and any info is appreciated. By the way, the car is an absolute blast to drive, 3100lbs with me and half tank of gas.
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