Yes, it has an interference motor.
The H22 engine, which are found in 1997 Honda Preludes, are interference engines. This means that the valves and pistons do indeed make contact as the engine is on.
Yes , the 3.2 liter V6 engine in a 1997 Honda Passport ( IS an interference engine )
How do you change a fuel filter in a 1997 Honda Prelude
Yes, the 1997 Honda Prelude does have fuel injection.
5w30 motor oil. It's your personal preference if you want to use standard, blended, or synthetic motor oil.
The Honda Prelude does not have a governor or speed limiter. It is only limited by drag at high speeds.
Interference.
23city 28highway
Yes, but it will involve modification to the body of the car. Check Prelude forums, the modification has been done and documented in detail.
There are a number of them, so you need to be more specific.
Needs cap and rotor
Not without electrical work. The 1997+ Preludes have OBD2 wire harness while the 92-96 Have OBD1. Different wire harness/sensors/ecu.