Just wanted to report i replaced the 70GTQ .85 housing with a 6776BB with .63 housing (See post 70Gtq vs. 6776 for detailed pics ) and the car is actually FUN to drive again , my conv is around 3200 and it spools really nicely off the gas no break boosting, boost was at at 18-19psi for all testing . launching at 15 psi off the transbreak resulted in hard tire melting spinning in all gears the 400 has to offer , but it spunem all anyway with out the break . Anyone thinking about getting this Turbo you will be pleased with its performance and enjoy its street friendly fun factor , the 70GTQ was a hard charger just not so good getting to the charging part . When i got home and shut off the car i could hear the wheel spinning for a long time just off the idle . Driving was like on ice (Well it is 37 degress here in NY ) and it was a challange to keep it out of the trees . I cant wait to see higher boost with this one , i could always juice it too if that gets boring .