I'm pretty much at all my limits .. engine, suspension, cage, etc. Boost is the only thing I have plenty left on tap.. I run graphite head gaskets, pump gas, radials, motor mounts, etc.. dunno where all this ends.. I cross the traps at 7600+ rpms.. my new hurdle is to figure out what rod bolts the motor has. At the current power levels it puts me over 1k.. and should be on the 2000 series bolts.. but thats another story..
Just put the car to 20 psi and let go the button.. if it works.. you'll get that 60ft number.