howdy,
1] some increase in oil pressure is expected at acceleration, especially if oil is warm.
2] clean out your throttle-body with a good spray. Remove the air cleaner hose, and then the two Torx bolts holding the horn to the intake, spray it all out really good, including the outer linkages.
3] Toss in a concentrated injector cleaner into around a 1/2 or 3/4 full tank, and run it out until ya need gas for real, lol.
4] have ya replaced your sparkplugs recently? Are the plug-end wires tight, and especially are the distributor-end wires tight at their respective connections?
5] It is very possible ya may have to new cap and rotor, be very prepared for sticker-shock!!!!!!!!!
Rotors run $35, and a cap easy $65. HINT, get a small file, and very carefully file the rotor-end to remove corrosion, and same at ineer distributor cap contacts, preferred is some fine grit sandpaper instead of a file. Go EASY!!!!!!!! You can extend the life of these expensive parts by careful sanding. Put some di-electric greas on the rotor contacts and the dist. contacts, that helps a bit. Start with the above, and if it nada help, let us know, K?