I might have a suspect short in my '87 4runner electrical system. I think I'm reading 24 milli amps drain on the battery when the car is completely off. I'm guessing it's to keep the time in the clock and the memory in stereo (I have an after market with an amp). Is 24 milliamps nornaml?

Sounds normal. The computer uses a little too.

My '94 reads 4.4 mA. 24 mA doesn't sound bad - it shouldn't even come close to discharging your battery except over a very long time. Here is some info from Optima's web site about battery ratings:

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Two standard ratings are used to measure a battery's storage capacity.

Amp Hours

The Amp Hour rating tells you how much amperage is available when discharged evenly over a 20 hour period. The amp hour rating is cumulative, so in order to know how many constant amps the battery will output for 20 hours, you have to divide the amp hour rating by 20. Example: If a battery has an amp hour rating of 75, dividing by 20 = 3.75. Such a battery can carry a 3.75 amp load for 20 hours before dropping to 10.5 volts. (10.5 volts is the fully discharged level, at which point the battery needs to be recharged.) A battery with an amp hour rating of 55 will carry a 2.75 amp load for 20 hours before dropping to 10.5 volts.

Reserve Minutes

Reserve minutes is the number of minutes a battery will carry a 25 amp load before dropping to 10.5 volts. (10.5 volts is the fully discharged level, at which point the battery needs to be recharged.)