You are going to run a faster time with a b16 tranny then a ls period. So your question is which one is better for boost ? Well if the b16 tranny is faster then its better unless you mean you would like better gas mileage. I dd a b16 tranny every day and get over 30 miles to the gallon how much gas mileage you want ? Back ten years ago all the turbo guys bought ls trannys thinking theyw were better for boost . Nobody back then ran the times that they do now with less hp . They shoukld have ran b16 trannys . For street cars you cant really see a big difference honestly. I build trannys and the best gearing ive seen so far is a b16 1,2,3 gsr 4 ,and ls fifth . Thats what i run and it owrks the best for me. If i was you i would get onto the tranny gear ratio calculator punch in some numbers and see what will work best for you. As for lsd thats a whole different debate all together. If you need a tranny built for you or if you want to seel yours or get it fixed just text me . I am a ia sponsor also. 478-808-9122