Finally, got around to dyno tuning the car. The tuner first took the 9 data points of the Pro-M MAF and generated 30 data points. Plugged them into the Diable chip along with other parameters (injector size, etc). Did a couple easy pulls on the dyno to check A/F ratios. Running lean at higher rpm. Tweaked accordingly. Finally did a hard pull at WOT and the Lokar ss braided throttle cable bound in such a way as to not release!! Had to quickly turn off the ignition. No apparent harm done to the motor. Managed a couple more pulls, but the throttle cable was acting up. Could see it in some of the dyno profiles - not always giving full throttle when the pedal was floored. The last pull also showed some wobbling above 5,500 rpm. Wondering if valves were beginning to float? Thought I had adequate valve springs, but did not take into consideration blown application. Big valves have large surface area and there is 8 psi of pressure per square inch on the valve surface working against the valve spring. Intend to replace the Lokar with a polypropylene unit and go back for another dyno pull. Also, I now notice a hesitation from 1,800 to 2,000 rpm when driving. It only occurs at that narrow rpm range and in any gear (running a 5 speed). Your thoughts on the current tune and what to consider when I go back.