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HI have found someone that imports vp race fuels into country ,what would be the best kind off fuel with low comp zz454 it is 9.3 comp with 160 cranking pressure with new cam fitted ,i want to run 200 shot
I have been running 150 shot no problems on pump fuel ,i know this guy has drums off c-12 in stock is this to higher octane, have been told over the years to higher octane with low comp motors losse power need a happy medium if i end up using c-12 do you jet up or down thanks
victtor
new zealand
 

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Your existing fuel might run OK but if you seek the most performance, you should try some C12 or maybe even C14. And with some timing adjustments you can get even more power than just the fuel change. Sometimes takes some tuning and tweaking any time you change fuel though - if you want the most performance.
 
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