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The RX3 is in a higher state of tune(water cooled,4valve,FI)and 25 hp is in the upper state of a 250cc.
You can get more but then you can’t run regular gas and engines become peaky.
Big advantage in FI is when you go up in altitude and it maintains optimum F/A ratio.
The biggest advantage though IMO that FI has its ability to handle Ethanol so much better
Than a carb and there is no petcock to worry about cutting off.
Of course the downside is you now have a fuel pump to contend with.
Good news is that FI systems (Delphi in the RX3’s case) have become ultra reliable and
Trouble free.
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