Invest in a good power-bleeder and be done with it. Otherwise, disconnect the balance bar and bleed one caliper at a time. This way you will know each line and caliper is solid. Also, on the caliper, make sure the bleeder is the highest point. Builders don’t always think about trapped air when deciding on the caliper location. By disconnecting the balance bar you can also see if it’s the front or rear master cylinder that giving you a problem.
John
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