Fuel Consumption for OS .25FP

For those that have used the OS .25 FP on the skyray and similar, How much fuel should I need to carry to complete a pattern?

I'm ready to mount a tank on the new Twister--won't be long now!

Thanks

>For those that have used the
>OS .25 FP on the
>skyray and similar, How much
>fuel should I need to
>carry to complete a pattern?

As long as you are talking about the stock engine with the almost mandatory Bru-Line fine air filter and a 9-4 prop, you will need something like 2.5 oz. This should give plenty of margin for a complete AMA pattern.