What would be the best way I have been experementing with difft ways. I want opinions from others.

 

In any auto the best way is to put your right foot over the gas and your left over the brake.
When the tree goes green slam the gas and take your foot off the brake. Hold it down untill your across the finish line.

 

What RPM do you think i should have it up to?

 

Don't pre rev it, most cars (not-sure about ralliart) have a safty feature built in so that you will be slower off the line if you do.

Maybe use your hand brake and step on the gas pedal so that you are just a bout to move but not moving. Then when the light goes green take your brake off and push the gas to the floor. (simular to line lock)