A 327 is comfortably competitive almost everywhere. Whether it is competitive at your specific programme depends on which half of it is doing the work.
Most people who reach a 327 stop studying, and that is usually right. What is worth ten more minutes is checking the split, because a quantitative programme reads your Quant score and largely ignores the total.
Good, with one thing to check. A 327 beats every published field average; whether it beats your field's expectation on the section they care about depends on your split.
No discipline in the ETS tables averages as high as a 327. Physical Sciences comes closest at 314, and it is still well short.
Do not treat any of these as a cut-off. A field average is a description of who applied, not a rule about who gets in, and every discipline admits well below its own mean.
A 327 is a sum, and admissions committees do not read sums. They read a Verbal score with its own percentile and a Quant score with its own, which is why two applicants with identical totals can look nothing alike.
At a 327 the spread is enormous: depending on how the points are distributed, one of your sections could sit anywhere from the 42th to the 99th percentile. That is the range a single total is hiding.
Split evenly, a 327 is 164/163, which ETS puts at the 93th percentile for Verbal and the 60th for Quant. That gap is not an error; the Quant distribution is simply far more crowded at the high end.
There is little here worth chasing. The score clears every field average, and the realistic upside is a few points nobody reading your file would weigh differently.
The one exception is a lopsided split. If the section your field actually reads sits well below its average, targeted work on that half can be worth it — the whole test does not need repeating.
Verify the shape before you stop thinking about the test. The GRE percentile calculator turns your two scaled scores into the two percentiles a committee will see.
Check your section percentilesThe score is done unless one section is unusually weak for your field. Check that first, then move on.
Rarely worth it. The total already clears every field average, and a few more points would not change how a committee reads the file.
Above the 313 engineering average, yes. The number that matters more there is your Quant score on its own, against 163.
For most programmes the split matters more. Departments read the section relevant to their field, and at a 327 the published section figures span the 42th to the 99th percentile depending on distribution.
ETS publishes no combined percentile. What it does publish, for an even 164/163 split, is the 93th percentile on Verbal and the 60th on Quant.