Ricky your car pulls great right now with the LS, i dont know why your even thinking about swapping. the only reason im swapping mine is because the motor wasnt strong anymore. i think youd be perfectly happy with a B16 head and type r cams and your GSR LSD tranny, that would be less money and youd be quicker then both the B20 and the GSR. just my opinion bro. i think i backed myself out of buying the B20 now, i may just buy a GSR block and B16 head. give me a call, and my phone isnt off, your calling my other phone. call me on the number i called you on before the HT meet