For my opinion, u have 2 option
1) Set up 4G93 SOHC, the simple way is just upgrade ur engine block to 1.8
2) Remain existing 4G92, go for after market set up.
Advantage to use SOHC,
- Engine weight is lighter than DOHC, better handling also weight balancing.
- Good on low to mid range respond.
- Good fuel consumption.
Disadvantage:
- Engine bay not nice as not " DOHC " engine to show off.
1) Set up 4G93 SOHC, the simple way is just upgrade ur engine block to 1.8
2) Remain existing 4G92, go for after market set up.
Advantage to use SOHC,
- Engine weight is lighter than DOHC, better handling also weight balancing.
- Good on low to mid range respond.
- Good fuel consumption.
Disadvantage:
- Engine bay not nice as not " DOHC " engine to show off.