I am new here and have built the Mpguino very nice circuit, but I have an older car with a carb has anyone moded the software to run on a flow sensor pulses and maybe ignition pickup circuit for rpm I have orderd a flow sensor on ebay that they use for the new coffe machines
http://img268.imageshack.us/img268/2463/597604178o.jpg
I need to test if the plastic withstands petrol but at only $8 to buy can't go wrong
they come in 3mm and 2mm bore sizes and would do the job well as they measure the amount of liquid to fill a cup
I think this would make the unit universal and could be used on any car