Re: electric shift or not???
A 1978 was not electric or hydro-electric. However, if it is "electric' shift it's hydro-electric and from the late 60's , pre 1973.
As for an easy way to tell if it's electric or not - if it only has one control cable from the control (for throttle) it's electric. If it has 2 control cables (one for throttle, one for shift) it's not electric shift.