Building a 410 stroker and need some advice

When it comes to octane ratings between the United States and down under, what's the differences? How does our 93 octane stack up next to yours or what is the equal?

I dont know,our octane rating is measured in RON.
Dont know what yours is measured in,pretty sure its
called something else.
But ive had this conversation a few times...
Regarding whos petrol is better.

The best you can get here at the pump is 98 octane.

What i like seeing is how far new motors are advancing
an the technologies there using so your average fuel
can still power high comp engines,due to variable ignition timing,
knock sensors etc.
Take for instance, the new bmw M5 makes 500 horsepower
with a 5 litre v10..
Compression is 12.1
thats right,12.1!

Yet it will run all day everyday on premium fuel with no
problems...

Im thinking your petrol is better.
Well id like to think yours!
America!
LAnd of opportunity!
So they say.

But seriously i love where i live in aus,an would never leave :cheers:

My bad for the rant.
Just thought id like share that info for those that didnt
know.