I recently purchased a 1994 Mustang Gt. Has cobra intake and after a little digging realized it has GT40 heads. It's auto with ratchet and while sitting at a stop light noticed oil pressure drop(stock gauge). Was able to find a small amount of oil on the the back side of block passenger side right by lower intake manifold/corner of head. Replace lower manifold gasket, used rtv front and back, oil leak fixed, upgraded injectors to 24's, replaced pcv valve and buttoned everything back up. Still have stock MAF on the cold air intake. Looking for suggestions for tuning(hand held vs professional) and any other upgrade suggestions for current upgrades. Thanks!