Difference between 165HP and 200HP Astros

How can you tell the difference between a 1994 Astro with 165HP or 200HP engine - just by looking around the engine bay?

The 165 HP engine has a round air filter on top of the throttle body. The 200 HP engine has a square air filter with a hose going to the throttle body.

I have a 1988 astro not sure what it has but I was wondering how much horsepower it has. I wanted to know bc I raced a 1994 ford prob GT manual and I beat him off the line and to 60 hahaha it was funny as hell.