I have seen a couple det's with stock turbos run anywhere between 10-15 lbs and between 50-100 shot and all took it like a champ. It is something that I would recommend only at the track or an important race but 12 lbs and a 75 shot should hold and make an ass load of torque. De's and det's are cheap so I am all for pushing the limits on them. It really just depends on what your point of view is on swapping out an engine if something goes wrong. On stock boost a 75 shot should be no issue at all if tuned correctly.