ya i knew the answer to that i just dont remember who had done the mod and who has not done the mod to the turbo. im thinking im going to run my Ta-54 as far as i can then go to the Ta-64. i think even without heads i could have gone into the 11's. now im removing my v1 intake and put a stocker back on and going with ported heads and built bottom end. she should go mid 11's now with some tunning and suspension mods.