Engine upgrade for 99′ carb. Zen

Hello
I want to upgrade E for my 99′ carb Zen.
The option that I have currently is:
1.3L carb. esteem engine

However I want to have an 16 valve engine in my Zen.

I know I can put an 1.3L MPFI Esteem & convert it to carb.
It is more preferred as the gearbox is an easy match

I also want to know that is it feasible to put a Baleno 1.6L engine & convert
it to carb.
Will it be efficient, also what about the gearbox.

I wish to get good performance & on the other hand not to decrease the FE to absolute nothin.

Any Help will be appreciated
Regards
-Aditya