brakes

[Rick_L]

.Stock pedal ratio is 6:1.

If the master cylinder is at stock height, the pushrod will be level and the clevis will line up with the original hole in the brake pedal arm and you'll have the 6:1 ratio.

If you re-drilled a new clevis hole 1" down from the original, you'll have a 4:1 ratio. It's usually used with angled vacuum booster mount. 6:1 ratio means you have 50% more pedal travel but 50% more line pressure than 4:1. You need a pretty hefty booster to make up for that. Or conversely, if the booster is dead or limited vacuum, you have to push real hard!

You didn't mention what booster or master cylinder you have. Usually the Wilwood calipers need a smaller master cylinder than the typical GM calipers used in conversions, so you may need a smaller master cylinder if it was sized for GM calipers.

If you feel you really need boost or a shorter pedal travel, as already suggested a hydroboost is the answer, especially if you already have power steering.