Thanks for the tips Victor. Yes I have to get some leaning provisions
in there. It is such a modular design I am thinking of doing a
mass air flow module or a MAP sensor module in place of the
slide throttle sensor. Just unplug it and plug in something else.

Another huge advantage of this approach is the math coprocessors
built into these chips that do floating point math in no time :)

Something you don't find in most EFI single chip computers.

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One use of the floating point math capabilities is to display
Gallons Per Second or GPM or GPH or all three on the LCD.
Handy when you get low on gas.

The computer knows the RPM and it knows the pules width.
fuel burn is therefor: RPM X pulse width X constant.

With another A to D connected to the air speed pito
tube pressure sensor MPG could be displayed. Also total fuel burned.

The possibilities are endless when one can make floating point calculations
in 5 microseconds. It is only limited by the number of sensors you want
to install.

The additional programing is trivial:

PRINT "Gallons per Hour ="; RPM * Pulse-Width * xxxxx

xxxxx is a constant that gives GPH.

Paul Lamar