Answer to 1/ The 28.37516 MHz (Pal Amigas) or 28.63636 MHz (NTSC Amigas) oscillator MUST NOT be exchanged!
It's the main Oscillator from which ALL clocks are derived by AGNUS and all it's variants.
That's seems CPU & FPU (if present or the motherboard) clocks, extension slot clocks, VIDEO clocks and all custom chips clocks.
Changing it for something else than it's current values will result in DeSynched video and chips panic!
Answer to 2/ All modern turbo cards runs asynchroneously with the motherboard.
Thus NO.
Answer to 3/ Cooling the CPU & FPU will be a good idea, but before mounting a 60MHz oscillator in place of the 50 one on the blizzard, be sure that the chips are rated at 50MHz.
If yes your Blizzard will cope with it's extra MHz, you even can push it to 64MHz. But not behond because the Blizzard SCSI Kit IV will cease to work reliably or at all.
Needless to say that in this case you MUST cool your blizzard ;^)
BTW, DON'T TOUCH the motherboard oscillator!
Amigalement,
Jean-François.
