On 23's a great upgrade is to remove the balance shafts & install a plug in the oil feed hole to the balancer's. It removes 'bout 18-19lbs & 12-14lbs of rotating weight & on top of that you will found your motor now holds 6qtrs of oil. I just used a plug= freeze plug style & staked it into the feed hole & add a windage tray. Don't nick the pan or block w/ the razor blade when scraping off the rtv from the pan & block= take your time on that. You don't want come backs do you= In your case you don't want to redo your work do you? I don't think so. Enjoy the mod too.
Interduce Mr. Torsen to the mix
D23 crew- D-Tech- Sedan Revolution= #131