273 stock push rod length?

gtsdude said
View attachment 1715018703

This is the set I ended up using, the base circle on the MP 557/296 cam was bigger than my old cam, that was a smaller MP cam, 508/280 solid IIRC

Yup, that's one of the sets I have here that is wrong. They measure 7.34. If they were the actual advertised measurement, they would be fine.