Quote:

I'm running a 10.25:1 440 with aluminum heads. It will run on 93 but pretty doggie, had to retard the timing slightly. I put the timing back and now run 50% 100/93 mix.



I'm running a 440 w/ 11.19:1 w/ Alumunum heads and use 93 w/o issues. I'm even going to step it up to 38* full in at 2200 but I also have one of these...

http://www.snowperformance.net/product.php?pk=31

No issues.

[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!