Just saw a friend with a classic "Tower of Power", and it looks identical to the 115 I have. Both are 1986, both are straight 6 cyl, and they really look identical, except the HP tag.
Am curious of what the differences between the motors, and is it possible to upgrade the power of my 115.
Is it possible to "upgrade" a 115 by say, increasing jet size and advancing the timing to compensate?