Well when I bought my car I was told that it had a streetport, what are some ways to tell if I was had or not, if any at all?

 

take the mani off and try taking a look at the exhaust sleeve.

or right apart.

 

When I do pull off the turbo, what would I look for, and that's the only way?

 

the only for sure way is to pull the motor right apart.

Because as we know porting includes both the side iron intake ports as well as the exhuast sleeve.

Now lets say you can see the opening of the exhuast port you would need to tell if it has been enlarged over stock. But that still leaves the intake side.