Yes still there 
Apart from the turbo and the manifold, a few other differences are:-
a. the distributor and the vacumm advance is different. the CB-60 is advanced by 10 degrees at idle where as the CB-23 is advanced by only 2-3 degrees. The weights inside the distributor which are responsible for the centrifugal advance are different hence the ignition advances differently in a CB-23 and CB-60 during acceleration.
b. The Carburetor of a turbo engine is very different as it has to cater for massive fuel supply under boost. EFI turbo cars are simple to turborize where as this jewel from the 80s was a marvel as it had a turbo when no other car had it.
c. Electric Fuel pump is fitted in the Tank where as cars with CB-23 had fuel pumps on the engine driven mechanically with the camshaft
d. FPR on the fuel return line to regulate the fuel supply and maintain / ensure massive fuel pressure in the carby during boost.
e. 4 speed gear with CB23 vs 5 speed on a CB60
e. Carby hat as in the picture of my engine and the aircleaner attached on the side are other obvious differences.
f. Turbo cars had other cosmetic differences too which dont really matters.
