No. If you set the CC variable, you would have to set it to the full path and filename of the 2.95.3 (or .4) compiler, not just the version.
The nVidia package has no idea how to invoke a specific version of gcc, in other words.
Also, you have to set CC to the compiler that was used on the kernel, and that is a compiler that you don't have installed.
What all this boils down to is, you should just recompile the kernel with a still old, but slightly less so, compiler (the default one on your system, 2.95.3 or .4).