Here is a picture showing the two....one is from my '79 SC, the other is a new '84 Carrera pump.
Actually, I am still toying with the idea of upgrading to a Turbo pump for my 3.4 litre project car, but Steve tells me that the Carrera pump will be fine for street use....
I am actually letting the market decide....if I can sell the new '84 pump for a good price then I will upgrade, otherwise, it goes in.....