Hydroboost issues....to sensitive

[bs46488]

Hello,

Looking for some advise on my hydroboost setup. I have a 1970 Nova with a 5.3 swap and a T56.

I have two issues with my brakes. 1) The brakes are SUPER sensitive/touchy. Like if you sneeze on the pedal, the wheels lock up. There is no pedal travel....the brakes are off, then BOOM you have full skidding on the wheels. 2) When you press hard on the brake pedal, I can feel "kickback" in the pedal. Its like the pedal rebounds off of something.



Here is my setup:
1996 Astro booster (junkyard)
C3 Master 1 1/8"
Wilwood prop valve
C5 front discs
Factory drums
10lbs residual valve on rear line
Booster/Master is mounted with the firewall angle brackets and rod is attached to the lower pedal hole
HB does use a "Tee" in the return line.

Overall condition of the brakes is good. All parts are new from Rockauto. No visible leaks. Master was bench bleed a lot. Brakes last bled as a traditional 2 person job.