I have 1.25's in my 2.3 stroker WBX from Unique Imports. Don't know how much
of an effect get from Rockers vs compression but my motor is way more powerful
than stock and I've had no probs with the rockers. I've been told by those in
the know that when you get higher than 1.25's, you run into problems with
losing low-end torque in exchange for higher RPM horsepower -- but you run out of
RPM's pretty soon with a WBX, so I wouldn't go higher than 1.25's. 1.25's are
a cheap bolt on for probly 10 more HP -- or so I've been told.
Chris Dixon