Got a line on an intake for a 69 small block and need some help to properly identify. I've got the original block in the car – 350/300hp, but not intake. (It's a Tonowanda code block).
Other than the date code, what would be the correct casting number(s) that I would be looking for on the intake? Also, there is a letter code cast in front of the carb. I've seen "R" and "T" and others, which ones would be correct for '69 350/300? Does that matter?