Another old mechanic read your post. I am currently building a 289/toploader 4 speed to bring my 66 back to original. My engine is numbers matching but came from a car with an automatic transmission. I have removed the flex plate and will install one for a 157 tooth? flywheel. Already have the right bell housing and the toploader. Now I am wondering if I have to be concerned about spacers and other items that have to be removed, installed or otherwise repositioned to make the switch. I have a starter that came with the original 351 W that someone had installed in the 66 but was told not to use it. Which starter do I need and what else to I have to look out for. I am already straight on the peddle assy. and associated linkage for the change back over to manual. Thanks Bobby