I have a 1400gx set up etc just rebuilt motor with cam regind approx 30/70. all going well I set dizzy @ 7degrees. problems: still pings and SU's are flooding/rich and idle is a bit up and down. I drove120 ks today to run in. I will now run hi octane fuel see if it make a diffrence if any one has got ideas and does anyone have a dyno/tuner that works on these carbs etc in Brisbane.