Yes, with those tires, I don't think you'll have any problems. Just be cautious when you come out and how you come out. Load the truck down some first or you will definately bounce or break. I run 305's with 3.54's and run 2nd hi at EVERY track with my measly 477 hp VP'd truck. Was good enough for the top 20 at Scheid this year and last as well as top 10 at TS '07 & '08. 3rd low does nothing around here for me since I'm limited on RPM's. I plan on switching gears soon, so I can bring my ratios into check, but the big gear got me those results and I think you'll be pleased running 4th and actually pulling on your motor to create speedage instead of spinnage. You can do whatever you think, but as long as the suspension is setup right, there's no doubt in my mind that you can come out in 4th gear at any track you plan on visiting with those tires, your power, and RPM's you have available. Just my $.02.