Zero toe-in makes for lively steering__tried it once just prior to an autocross up in Shreveport, Louisiana (I drove there from Lafayette, LA). A tiny bit of toe-in, 1/32 to 1/16" inch (or somewhere between 0 & 1/8") will load the front suspension just that little bit to aid straightline stability.
With the toe set at zero__and true zero being hard to get repetitive results__the load on the steering will oscillate between toe-in/toe-out and make for a weary drive. Given the play in the Healey's suspension and steering components, you'd be hard pressed to get the same readings when checked after each of five successive trips around the block anyway.
If you do opt for zero, you'll want to make every effort to eliminate as much free play as possible in the steering box__quite literally, opening another can of worms (and peg...
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