Ok I have stock 78 and installed pamco....only problem is when using timing light to time when I slightly try to apply throttle to time at full advance (3000 I think) around 2700 the rpms rev up past...its like turbo boost kicks in....in searching around the idle timing can be within two marks....I didn't know that im at right in middle for idle...if I adjust within those marks at idle timing would that help me get to full advance mark to time? Been riding bike but kinda gargles out exhaust when's slowing...5 twins informed me I need to do a correct timing at full advance to...I didn't know that.. so that what I'm trying to do