Hi Guys,

Question on tuning...... My cars tune supports the ability to run E10..... but I run 98.

I find on the Hot Tables it knocks around 6-9 degree's, I suspect this is due to the fact E10 doesn't ignite as well as 98 grade fuel?

eg. Should I pull timing and move to more down towards the colder tables?

Does reducing the spark ultimately reduce power or does knocking less overall improve the HP?

I've been highly against reducing spark from stock, but I need opinions