Q: Does this kit give me both power brakes and a hydraulic clutch at once?

Yes. This is a combined upgrade kit for 65-66 Mustangs with all-wheel disc brakes — it includes the major components needed to add power-assisted brakes and convert the clutch to hydraulic actuation in one job, built around MustangSteve's own pedal support design.

Q: What does the 'revised ratio' pedal support actually change?

The factory pedal ratio wasn't designed around a hydraulic clutch master/slave setup or a disc-brake power booster. The MustangSteve pedal support revises that leverage ratio so pedal effort and travel are correct for the hydraulic clutch and the power brake booster, instead of feeling too light, too heavy, or having too much/too little travel.

Q: Is this the same as your cable clutch conversion kits?

No. This is a hydraulic clutch setup (master/slave cylinder), separate from the cable-and-quadrant conversion kits. Choose this kit if you're also upgrading to power, all-wheel disc brakes and want a hydraulic clutch to match; choose a cable clutch kit if you want to keep a mechanical cable actuation.

Q: Should I go hydraulic or stick with a cable clutch?

Both work well when installed correctly. Some cable clutch owners worry about cable durability with long tube headers or tight routing, since heat can be an issue if the cable isn't routed and shielded properly — that's one reason some builders choose hydraulic instead, since it sidesteps cable routing/heat concerns entirely. If you already have hydraulic components (master/slave cylinder, throwout bearing) from a transmission swap, this kit is usually the more straightforward path; if you'd rather keep things mechanical and simple, a cable kit has fewer parts.