Thanks. No surging at idle. When the car warme up, the idle is still bad. The whole car will shake ubtil yo reach 2000+rpm's. What do you mean by"hammering"? The car is fairly noisey until it warms up, but after that it seems ok.
I was thinking about a pressure problem. Blows #1hard line, then #3 hard line, then develops leaks on the IP, so O rings replaced. Pressure from IP seems not constant.