High compression with aluminum heads and pump gas???????

360tripleblack7 said

Hi Tubtar,

I was wrong. In Brazil we have 95 at Podium Pump Gas but we have a federal law that forces that all types gasoline must be 25% of Ethanol. Price is around U$: 1.30 per liter.

This is a problem when Brazilian costumers buy a Edelbrock carb. Normally we have a lot of problems with corrosion...

Attached a table with comparison between most popular types of gasoline in Brazil.

Diego

Click to expand...

I had a carb built for ethanol since I run E-85 , but with 25% I am guessing you need to richen it up over what it would like on straight dinosaur fuel.
That is enough to be a real concern for corrosion too.
I think the US is the at the pump octane pussies of the free world...........I have been around a bit and it seems like everywhere I go has much higher octane available at every station. Here , you can find it in spots but you have to know where to look.

mini said

Also my Jetta is 10.3:1 and runs on 87.

Click to expand...

That's nothing to be proud of , Son. lol