MY COUPE RUNS VERY ROUGH(JERKS, HEAVES GREATLY) PARTICULARLY IN FIRST AND SECOND GEARS AT SPEEDS UNDER TEN mph. I ADD ONE ONCE OF LEAD ADDITIVE PER FULL TANK. IS THAT SUFFICIENT AND POSSIBLE CAUSE? SET LOW SPEED CARB NEEDLE AT ONE AND A HALF TURNS. ADJUSTING IN EITHER DIRECTION PROVIDES NO NOTICEABLE CHANGE. Have put in new plugs and points, adjusting POINTS USING BRATTONS QUICK SETTING POINT TOOL. AT HIGHER SPEEDS, RUNS A TAD BETTER BUT ALWAYS FEEL ENGINE IS POUNDING HARD, IF THAT VAGUE WORD DESCRIBES IT. ANY HINTS WOULD BE VERY WELCOME. THOUGH i USE SETTING TOOL, OPTIMUM POINT SETTING IN YOUR EXPERIENCE WOULD STILL BE WELCOME. WES, PANTON, VT
