My first generation build

[geezer101]

You need the vac line on the distributor to be connected during tuning. Also make sure your air/fuel mix screw is adjusted correctly. What is your idle rpm like? Try to set your throttle stop with a minimum of load on the throttle linkage and dial it in slowly. Timing, throttle and air fuel all affect each other - once you have got one right, the others fall into place eventually.