I just had my 74 GTV restored, used to have a Shankle Sure start, ran great with it, swapped it out for a rebuilt Ingram TA, pump set to spec using factory manual and factory tools. Starts ok, idle 1100, while warming up throttle to 3500 seems fluffy, like running on 3 cylinders, once warm that disappears, but no snap until around 3500, pulls smoothly below that when warm but the power is not there. Pittatore cams set at 104 lobe centers using a degree wheel. It’s been over 20 years since I drove it regularly but had great power throughout the rev spectrum, now feels like a two stroke when it hits 3500. Any thoughts?