I’m not sure what the original part numbers were, unless your engine is a stroker or has ported heads and a large roller cam those plates are probably very close in jetting for what you need. On my stocker engine I use .030 idle and .073 main jet. On the older super stock engines my father used to run we had .032 -.080 plates.
Thanks for the Info Jimi.. I'm beginning to think they are close as well as I wanted a baseline to start with..
