Originally Posted by scooter569
I bought the car with some work done . Just trying to find get a idea how much was done to it . The people I got the car from had no clue .
Well really without any background you would be best to tear it down to be certain. I mean the best you can do is take the valve covers off and check if there are cams, but other than that your in the dark. A stock plenum won't benefit from a 75mm throttle body. There are many selections out there. What direction are you wanting to go?