No, you won't notice any differance; all other facters being equal.
Coil overs have a couple of small advantages: They are a smaller package, to easy to use on modified suspensions and very large tires. They are easy to change. You can swap springs and shocks at the track with nothing but a pair of wrenches.
On some set ups, there me even be a little less unsprung weight. Unless you're running on the ragged edge on the track, you won't notice that, either.
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'08 V6 Pony
'65 Monster FFR Cobra |