sign in or
join the Thunderbird
club free to access the search page and many other free site features. If you forgot your password
Discussion in '1989 - 1997 Ford Thunderbird' started by June6ixty, Aug 28, 2019.
Would like a little help of what's the best upgrade on these cars
That's a broad question. There are minor things you can do that don't involve opening the engine and will add 10-20 horsepower. Then there are more major things like swapping cams, changing intake manifolds and heads, etc.