I am having plenty of strife with the timing on the old girl. at idle i can get it timed perfectly, running better than when i started but it keeps advancing itself under any load. i have checked that the harmonic balancer hasn't spun and its all fine. i was thinking bout throwing in a dizzie off something like a blue/black 308 to do away with points etc. what else is needed for me to do so ? or whats the best option ?