convertor choice will be governed by camshaft,turbo size ,amount of boost,transbrake or no transbrake ,suspension mods etc.with projected power being less than 700 the glide will make the engine sit on its dick in 2nd gear.the glide will need to stall higher to get a good launch and this will KILL top end hydraulic coupling efficiency of the convertor.above 700 {and i mean at the rear wheels}the use of the glide would not be so questionable and i would use a 1.80 gear glide with a 4.1 ring and pinion with a tighter convertor.too much rpm drop on a gear change will seriously impair the engines ability to gain rpm through the loss of the runaway case of momentum which allows rpm to increase with increased air intake and the pressure in the intake manifold even with a forced induction system.the higher the operating range becomes the narrower the power curves becomes and the available rpm to accellerate the vehicle will be a major factor in accelleration.if the motor was to see 7800 or so rpm i would then use a 1.66 glide with a 3.89 /or 4.1 final drive ratio.some may consider this foolish but it has proven very effective in my twisted perception of the game.