Here are all of the symptoms of my problem, plus parts that have been replaced. Car: 1990 Honda CRX Si with 1998 Integra GS-R swap Replaced Parts: - Spark Plugs (Were worn) - Distributor Cap and Rotor (Were worn) Parts tried then returned: - Ignition Wires (Fine) Symptoms: - The car is barely driveable. - The car starts fine. - The car idles smoothly but idles lower than usual. - When in neutral (5 speed manual), engine won't rev high. It will bounce off at a point and rev back up to the same point, then repeat consistently. - When driving, at an EXTREMELY light throttle (<1/4) it is fine. - Throttle past 1/4 and it hesitates then jerks. - Full throttle and it sputters quickly and jerks sometimes. - If I don't let the clutch engage fully and let it slip some, it can accelerate at a higher throttle because it isn't under as much load. - I can only drive so fast, because even in 5th gear I can only put the throttle so far without it hesitating, jerking and sputtering. - Lately after changing my transmission, clutch and flywheel, when I decelerate the tach needle will bounce wildly up and down. - At idle with my Hondata s100 tuned computer the idle doesn't surge, with a non-vtec civic ECU the idle surges.