I heartily agree
This has been the gist of everything everyone has said so far, alter the car and if you then swing "out of the operating bounds" of the other components in the system you have a problem.
the solution to the issue will be dependent also on how far away from stock your car/motor/axle ratio/cooling system is and what you use your car for
if its standard or follows their performance or race proven route i think chrylsers advice is prety good, whether thats is service manual or any of the how to "blueprint and build a nice motor" books from the ex race team and employees. I've had no issues when i follow the book and i tend to base any help i try to give on things ive had no issues with. The chrysler guys had a multi national corporation behind them with dyno rooms and warranty claims to worry about, a race program and space stuff, air raid sirens, air conditining units outboard friggin motors train generators, belgian ambulances and spanish cement mixers . the books are old the cars are old but the detail is great and the advice i think still stands, no real reason why it shouldn't they or the bloke they had their lunch with every day designed it...
if your car is built for a specific type of racing you are gonna need to band together with others who do that to find out the good ****... some people here are pretty free and easy with that info, which is great, that seems to be a mopar thing.
we just can't seem to be able agree that this is the case.
Whats good for the goose aint neccessairly good for the gander
Dave