Does anyone know of a chart or reference that shows what jets and rods certain cars came with years ago? For example, the Carb Shop sold me a set of 74 jets and 44 rods and said that the '70 LT1 ran the same ones. This would help give me a baseline on where to start with my other cars.

first thing, a '70 LT-1 had a holley carb,
my '70 L-48 has 76 jets & 44B rods.

try this site for jet & rods for a certain carb. http://www.corvettefaq.com/lars.asp