Originally Posted by
DR.FORD
You are an intelligent guy, so I'm sure you understand that 800lb open valve springs in the 1980s were of a "little" different material and technology than today! Hell, we used to joke about bringing replacement valve springs and the tools to change them with us because I went through 2 sets a year:rolf Also factor in profile... you have a turbo cam which treats valvesprings with love compared to the cam in that Mustang. I shifted the car between 9000 and 9600RPM:wow It was normal to drive down the expressway at 4800 to keep up with traffic, too! The technology of today makes it alot easier to go fast and have a streetable car-it helped me! It did seem a whole lot easier then, though!