I think that’s where this question usually comes up. If the engine wants to idle at say 1,200 rpm because of the combo and the advance curve is “all in” around the same rpm then theoretically there is little to no advance curve anyway.
No way to know if there is any benefit to locking the timing without trying it. I believe it’s pretty easy to do on those distributors so give it a shot and let us know how it works out.
