They put the limit on them because the GM platform didn’t make power that high. Simple as that. And when GM doesn’t get what it wants, it snivels. They said they did it because the cost of valve springs was going through the roof, when in fact that is a best a half truth. The biggest cost factor for Pro Stock was running 24 races and all the costs associated with that. Chris McGaha laid it all out. NHRA knew exactly what it was doing to the MoPar platform when it made that rule. It also knew what would happen when they changed from VP to Sunoco fuel. The burn rate was detrimental to the MoPar. All of this has been documented on line. That’s how I learned it.
