[HWYSTR455]

You need to be sure you have the correct booster pin depth. Best way is to use a pin depth tool:

https://www.ebay.com/i/254608893852?...iABEgLek_D_BwE

For others, reference:

Put a hand vacuum pump on the booster and make sure it holds vacuum. Make sure you can blow thru the vacuum break that goes into the booster in one direction, and not the other.

More than once I've had bad boosters out of box.

Yes, the eldo calipers are critically dependent on the e-brake, to take up piston/disc free play. Bleeding is a pain, when you think you're done, do it 2 more times.

Just to ask, you bench-bled the master, correct?

The 1 1/16 bore is correct for your system.

As for pedal/pedal hole, etc, key is to have the rod be a square, straight-shot into the back of the booster. Also have the 'slack' taken up by adjusting the clevis. Power brakes = bottom hole in pedal.

General brake troubleshooting tech at Pirate jack's:

https://piratejack.net/tech-support/

Make sure you go to the bottom and look at other troubleshooting sections for different areas of the system.

If all else fails, replace the combo valve, they are know to be defective. Get the one from Pirate Jack.

I had pretty much the exact same setup as you, and originally had issues, and after going thru everything multiple times, turned out to be a bad booster.

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