I am going out to drag tomorrow and need some advice. Just had my car tuned at 466rwhp with a howard coleman built motor. I have new trailing arms, toe links, diff mounts, and a banzai racing diff brace. I want to get ET streets but was not able to get them for this weekend so I will be running my 10.5" RT615's. What rpm range to I need to be launching at?

 

7000...
but a dyno graph here would probably let us give you a lot more advice.

 

definitely 7g an above, just dont clutch dump it