The best way to prevent oil pressure dips is to use an Accusump, I have used it on everything from a GT4/5/lites to ITA Honda's. It is far superior to baffles, 1) you can mount the accusump all the way in the back right rear corner to help balance some weight, 2) put an easily reachable shutoff valve (near the shifter) so you can open if before you start the motor to "pre-prime" the block 3) the extra oil (and surface area) in the Accusump will help to keep the oil cool.

All of the guys running my "Bullet Proof Motors" run them, and we have never had an oil related failure in 15+ yrs of racing.