One tooth up on the front and down two teeth on the rear = starting point you will need, got a garage full of KZ gears that everyone said were the right ratio = ran one up two down for 17 years, got dead on the dials but not the fastest MPH ........ When the start paying money for best MPH in street ET. , NEVER-EVER then you work on that game.
Be careful of that high water in tour neck of the woods, had to use a ZODIAC RUBBER BOAT many times to get folks out of harms way ........ didn't save them all !!!!