1985 Johnson 150 has new coils, new power pack. Carbs are rebuilt. When I run it up not in gear its fine. I put it under a load and it idles perfect but whem i bring it up past 1400 rpms there is a definte miss. then when i get past 2100-200 rpms its fine(no miss) gets up to 4800 rpms. Thats it...