first of all CA and Z series engines are two different engines...
CA....belt driven, while Z is chain
i have a CA too hoss, and its real good engine if yuh doh really want too much, and doh really want to spend too much.....
alot of the parts are interchangeable as mentioned before, and too parts are readily available, the engine was not really designed for big speed.. so to say....
its more of an old model type of eco engine, the ex plug fires a few degerees after the in plug spendin any fuel left in the chamber, so it optimises the fuel.......
well thats what i gathered bout it..........
the downsides are, its belt driven, carb, poor bore and stroke, getting older and older, the price for one is like what $3500, look around and and plead a bit and im sure u will find a SR20,
then again come and buy mine........ill give u it for $2000.....

and i have CA20 8-plug eh..
