how do i figure out trap rpm with my diff gear?

105 is probably pretty reasonable. A lot of guys are surprised when they start doing the math to find just how much gear a slower car needs for optimum drag strip perf. The od is a big plus on the street

that was with a 4.89 gear ratio...do you think that 4.89 combined with a 3.35 first gear will be too much tire spin off the line and impossible to control?