[Marcus]

What kind of octaine should I use with my car,I have beefed it up of course with Holly carb,edlebrock manifold,stuff like that,but should I always fill up on the big 94 octaine gas or the cheep 89 octaine is just as good?

[dave-r]

Use the 94.

[Joel]

In the States, we have three octanes to choose from at the pump, 87, 89, and 92. There is a BP station near the city of Sumas not far from where I live that sells 100 octane gas, but you can always buy some 108 or one of the other well known brands of octane boosters. I believe that you could buy the brand that would raise the level of octane in your tank to 112. Octane boosters a very inxpensive, between $6-$18, exchange right now is about $1.60 American for every 1 English pound, so it is not expensive for what it can do.