for all those that have been following me on my installation of coils etc, here is something new that i can't figure out. before going to a shop to see if they can get it going again, thought i would try here and let ya'll know what it is doing (or not doining). first i took it out for 150 mile ride and could not go over 70 mph and when climbing a hill could barely make it to the top. than just before arrive at home it was backfiring throught both exhaust pipes and barely got 30 mph. then all of a sudden stopped backfiring and ran at 65 mph and that all she would do. it just felt like it wasn't running on all cylinders, and then again later it seemed it was running smooth, but couldn't go faster that 70 mph and then it was struggling. any suggestions before it take it in to let professional get to it.