Feel free to ask any tech questions about V-8 dirt racing here!  

Dirttrack application. Clear something up for me about red hot headers please.  I understand that ignition timing, a lean airfuel mix or both can produce this condition.  Can a overly rich airfuel mix do this too?  Is it too advance or too late in ignition timing that can do this?  The spark plug exhibits a medium/dark gray color, and the header turndowns are ashy gray with little residue on them.  

Thanks  

Usually too much advance causes a red hot header condition.  

I race at a track that allows you to run the 602 350/350 GM crate engine.Its the best thing since sliced bread as far as racers expence go's Well anyways the big problem is, these are factory sealed engines, and teams are cheatin them up! Ill bet thats a big surprise to ya ,well I'm trying to help the track police this situation by coming up with a way to check the engine with out taking them apart. A preliminary test to see if an engine should be looked at deeper.Is ther a device that could be attached to the end of the exhaust pipes to actually read how much air the engine is pumping. I was thinking that if you had the numbers that a bone stock 602 should be pushing out,then you just compare them. They should be the same ,or really really close. We have to 93 octane pump gas and our exhaust pipes have got to be 2 1/2 inches. So you would think the specs should be vary close.With the amount tracks across the US converting over to GM crate programes you would think they would have an easy way to detect port work and cam changes. Well what do you think? PS sorry I was so long winded.