pcv and thermostats for street strip cars ?

Nie tosee we can still agree to disagree ;) For what it's worth...Having a warm or cold engine doesnt effect the intake charge. At full throttle, atomization takes place at the venturi, but it's not really atomizing. It's dispersing various size fuel droplets. Some molecular, some much larger. Think otherwise? block your throttle to keep the engine above idle, say, 2500rpm, and point a timing light down the carb throat. Now, those droplets make the turn in the intake, and pass down the port. Not the whole port, mostly thru a few smaller spots in the flow path. As it travels, it picks up heat off the walls, but very little because of the boundry layer along the walls and floor. So really, aside from the intake valve head and seat, little heat is picked up from the head material during the intake stroke. The temp of the air, is important. The lower the better. Here's the rub. The parts were not machined at 200° on most of our engines. Temps change all dimensions. Your rings, pitons, valves, rockers, and headers are all designed to work at certain temperatures. NASCAR machines the parts while 240° water is run thru them, because that's the way they will be run on the track. Some engines will like to run cooler. Not because the air is better, because the oil, the tolerances, and various parts are most efficient in that engine at that temp. Heat is power. But it's heat created by combustion, and heat not lost INTO the cooling system. That heat needs to stay with the gasses aall the way out the exh header. If your engine gets too hot under full throttle, it's not heat efficient, or has a marginal cooing system. Genrally, the most power will be gotten from the hottest temp it can run with.