[justa6]

Hi,

There is no doubt that if you don't need race gas then your better off with 93 octane. BUT, IMO, there is no way to run high compression off of 93 octane. IF it could be done then the new cars light the Corvette, Mustang, etc would do it. Again, in my opinion, there is simply no way that you can go over around 10 to 1 compression on any 93 octane. You might be able to "trick" the car by really retarding the timing but it wouldn't run very well that way. And in fact to even get to 10 to 1 you'd need aluminum heads.

If you do have 12.5 to 1 and are running true "pump gas" you are going to put a hole in one of your pistons, soon...

It will be interesting what others say about this subject.

Regards,