I need all you nitrous guys...

okay, I know its gonna be hard to do, but try and enter chevy mode for me. My dad has a 65' chevy II nova :sad1: with a 327 (.060 over) small block, all stock except headers, an eddy cam?, eddy performer rpm dual plane, and a 750 eddy carb. He decided a while back he was going to install a nitrous system for some cheapo get-up-an-go, and bought a sniper nitrous system. Its one of the systems that have a plate which sits between the carb and manifold. Nothing expensive for sure. A problem recently occured after we made a trip to my uncles house, a fairly long way, and the nova likes to run hot, so by the time we were pullin in the driveway to their place it was around 220-230. He went out to take my uncle for a ride and show him what the nitrous could do, but of course, it failed, and refused to fire. could anyone help him out, seeing as he hasnt a clue whats wrong with it. We figure it has to do something with the heat, and the system is a 50-150 horsepower shot, changing with little nozzles that sit inside the fitting that screw onto the plate, we checked for all kinds of stuff. The nitrous will fire for about a second, and it falls on its face, and bogs. So, is it something due to the heat, or is the bottle not flowin enough to keep up? We already tried a new nitrous solenoid, and no fix. It seems like a pressure problem to me, not being able to sustain the pressure after the initial burst at the start, any ideas guys? I promise if you help, Ill TRY and convert him to the good ol' A's, or at least some chrysler stuff. dont count on it tho, hes an old chevy guy. Thanks in advance. -Ryan