You guys did such a great job helping me on my holley, maybe you can answer this.

I have a 68-289. Mild cam, Edelbrock RPM intake, Holley 600cfm, headers to Flowmasters.

Problem is the hesitaion off the line. I can't even spin tire !!! This should be lighting them up. Once it gets past that point it takes off like a rocket.

Timing is set to 6 BTDC, Mixure is set with vacuum, Plugs look great. New cap, rotor, plugs and just rebuilt the carb and new air filter.

Transmission over-revs from second to third. (wondering if it's the tranny)

Any ideas? What am I forgetting?