Just talked to my son tonight, we put a timing belt on his 90 model today, he had broken it riding on Sunday. We lined the timing and crank marks up, both at the top, put the belt on, spun the motor 720 (two full turns) and the marks still lined up. So I am assuming that it is on right. We set the valves and the fac specs and he put it all back to gether, He said it cranked right up, idles good, buy when he tried to drive it across town he said he had no power, would barely pull out of the driveway, Any suggestions? His timing couldnt be off could it? We never moved the distributor..... His motor was a super running 90 model FI before the belt broke. He couldnt have damaged any valves when the belt broke could he ? Thanks for your input in advance, WHAT A GREAT WEBSITE..............