Internet is out today, got bored, turned the car up. It was running 17psi so I sent it to 20psi and it was all good. Sent it to 24 and despite closing the gate it only made 22psi up top. It has reached the limit of the valve springs, it literally hit an imaginary wall at 5000rpm. Oh well, I'll turn it back down to 20psi and look into putting some hectic springs and retainers in it. At this rate I may as well chuck my hectic cams in it too, cos it's never fast enough apparently