Okay -- it's a gathering of dinosaurs here in this thread -- the next you know -- we'll have enough of you to start the LaBrea Tar Pits....
My brother in law ALWAYS pushed BB's -- I ALWAYS drove SB's... we went round and round for 30 years... 'til I bought a BB side exhaust 67 Vette (I've owned a few 66/67
SB Vettes) - from then on I finally understood what he was talking about...