Quest for 7's in the 1/8

By the electric water plump( electric motor belt drive to water pump) thermostatically controlled. remove the thermostat.

Isolate your voltage regulator(so it can't get its ground from the fire wall any more) add a ground strap to the voltage regulator. then get a dome switch( the little switch that turn on you dome light when you open up your door) attach the ground strap to the dome switch and attach it to you carburetor. So that when you hit full throttle the sw open and you loose ground to your voltage regulator and the alternator stop charging. let off the gas and it starts charging again.

Now add a electric fan that is also thermostatically controlled as well.
That should get you close to your goal.
with out the drag and weight of the fan(assuming your running a fan with a clutch) gone and the draw of the alt,.......Should kill a tent a at the vary least and when the eng is hot and the fan is locked up going down the track may even be a 2 tent difference.
I have been told that the small single wire alt take a lot less HP to run then are Chy.

Just some food for thought.