http://www.f-16.net/reference/versions/f16_79.html

I've read that the F-104's speed is really limited by the
compressor inlet temperature on the J79, and that the
airframe itself supports much higher speeds. Since the
J79 fits (modified) in a F-16, what then if we were to
fit a GE-F110 type engine with closer to twice the thrust?



Regards...