Carrs machine Shop where Jim aka JAFASOLD had his pulley turned has a new number, the last 4 digits are 6515 for a new number of 570-784-6515. I'll keep you posted, mark
PS: Waiting for a call from Carl and Carrs to see if they will be able to complete the last piece I need and Jim agrees the 178/70 or 181/70 are nearly perfect combo's allowing the SC's to remain in their listed sweet spot RPM wise and the stock injectors are up to the task with an adjustable regulator/pump/filter from Rob. maybe I will get this completed by the end of Summer afterall. Sub 12.5's should be a lock, I hope

PS: My used SL55 fuel pump arrived today, I have to go pick it up. $80. shipped from a car with 49k miles on it. Thanks guys for bearing with all of my questions and poor health which often had me asking the same question more than once!