They would make them run in the five second zone!!!!

I doubt it.

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Nothing more than they are doing now. Traction is a big problem with limited wheelbase door slammers.

The big motors are less efficient but I'd probably stay in the stands to watch them. They are definitely a different animal. For me the NHRA Pro Stocks are a big yawn. I like the technical side of them but you can't see that part when they're running down the strip.
There was a thread here on the Mater a while back, after Greg Anderson started dominating the class, about the tech side of P/S & it was one of the best that ever ran here. Wish someone would start another. But as I said you can't see that part when they run down the strip. As always, just my $.02..........."HIP"

You are 100% correct... if you check, you will find that most (not all) comp Eliminator cars with small block Bow Tie motors (290ci) make more HP per CI than the pro Stockers.. I know about 10 yrs ago a Comp racer with a D/A had a 290 ci motor & it dyno'd at 721 hp that is about 2.4 HP per CI.. that about what PS 500 motors are making now,, however in the past 10 yr I bet they can get more than 721 hp from a 290 ci motor..

And the BIGGER the motor the less HP you will get per CI..

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"When I die, I want to die like my grandfather, who died peacefully in his sleep. Not screaming in panic like the passengers in his car."

I remember Darin Morgan saying a while back that the 800inch engines are the equivilant to trying to run a 400 SBC with something like 1.5" intake valves. He also said that at the speed they're turning them (which isn't nearly as high as the 500 inchers) the piston is trying to outrun the flame-front. One other thing he said is that those mountain motors have the highest piston speed of any racing engine because of the huge crank stroke.