yes, very good! especially when running right (it's had it's issues)
find '87-88 parts if you can, the computer and such that came on them will handle more boost than the '85-86 like I have, and apparently have a better all around tune. I leave my boost controller connected which puts me right at 10psi, on regular gas I can get to 8 or 9 when it's hot before I get a mild ping, if I'm planning on rodding on it I'll stick plus in it, that seems to be enough extra octane for it, premium if I wanted to disconnect the boost controller...