Good idea to have a baffled oil pan?

The issue isn't whether your car runs in the 12s, 11s or 10s. The issue is how many G forces you generate. For most cars maximum Gs occurs during the launch. A hard launch with a clutch or a transbrake can easily produce more than 1 G of force even in a 12 sec car. If you combine that with the car's nose up attitude during the launch it is very possible to uncover the oil pickup.

Try filling your pan with the correct amount of oil (use water instead) minus what would be in the oil filter and minus another half a quart for the oil pumped into the top of a running engine. Then tilt the pan to a 45 degree angle to simulate a 1 G launch. Almost certainly your stock pan will uncover the pickup under those conditions.

Just to check how fast you have to go to produce a 1 G launch, you can look at Wallace racing calculators. Wallace shows that a relatively modest 1.8 sec 60 ft time will be pulling 1 G. The calculator also shows that a 1.8 sec 60 ft time would produce about a 12.95 ET. Not very fast and well with your car's capability.

If you don't want to buy a new pan, then you can simply weld in a baffle into your own pan. Be sure to leave some gap for drainback tho, and check clearance to your crankshaft of course.

I personally saw a young man build his first hot engine with a stick shift back in the late 1970s. He spent a year working on it and put every penny he could save into that car and engine. Unfortunately he used a stock oil pan. On the first trip to the track on his first pass, he launched at 6,500RPM, got good traction, pulled the tires off the ground, lost oil pressure, spun a rod bearing, broke the rod, and destroyed the engine in seconds. He was so disappointed he never recovered, sold the car, and gave up on the sport entirely. Please don't make that same mistake. (FYI it was a small block 1967 Ford Mustang.)