Seen lots of posts of pro jection. Seems like no one endorses it. Would like to try type with o2 sensor. Problem is we see -15 degrees here and then summers at 90 degrees. Do you always have to fiddle with the computer adjustments of wide open throttle, choke, rich- lean or does it always start right up when dialed in? I don't want another carb. if it's just as bad.