Distributor Vacuum Advance?

Bewy said

Rat Bastid.
Total nonsense by you.
An engine, any engine, requires a certain amount of timing advance at idle. It doesn't care how it gets it, as long as it gets it. MVA is one method of providing of it. MVA has the twofold advantage of providing more timing at idle plus providing additional timing at cruise.

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So an engine that needs say 35 or so at idle is correctly built? That’s nonsense. Something is wrong with it if ANY engine wants that much timing at idle. Simple as that.

Just like beehive springs, this is your one trick pony. MVA is a crutch for a piss poor build.

EDIT: so is locking out a distributor. It’s a crutch. Fix the issues and the engine won’t need timing like that.