A manifold-head connector assembly comprising: a distal jumper tube in fluid providing communication with a cylinder head aperture, the distal jumper tube comprising a distal jumper tube conduit defining a first inner bore, a first upstream end, and a first downstream end, the first upstream end having a first exterior engagement feature; a proximal jumper tube comprising a proximal jumper tube conduit defining a second inner bore, a second upstream end configured to be coupled to an intake manifold, and a second downstream end, the second downstream end having a second exterior engagement feature; a middle jumper tube comprising a middle jumper tube conduit defining a third inner bore, a third upstream end, and a third downstream end, the third upstream end and the third downstream end having a third exterior engagement feature and a fourth exterior engagement feature, respectively, the third exterior engagement feature removably coupled to the second exterior engagement feature, the fourth exterior engagement feature removably engaged to the first exterior engagement feature; a first means for engaging the first exterior engagement feature and the fourth exterior engagement feature; and a second means for engaging the second exterior engagement feature and the third exterior engagement feature; wherein the first exterior engagement feature comprises a first flange, the second exterior engagement feature comprises a second flange, the third exterior engagement feature comprises a third flange, and the fourth exterior engagement feature comprises a fourth flange; and wherein a first wedge-shaped gap is formed between the first flange and the fourth flange; and a second wedge-shaped gap is formed between the second flange and the third flange. a distal jumper tube in fluid providing communication with a cylinder head aperture, the distal jumper tube comprising a distal jumper tube conduit defining a first inner bore, a first upstream end, and a first downstream end, the first upstream end having a first exterior engagement feature; a proximal jumper tube comprising a proximal jumper tube conduit defining a second inner bore, a second upstream end configured to be coupled to an intake manifold, and a second downstream end, the second downstream end having a second exterior engagement feature; a middle jumper tube comprising a middle jumper tube conduit defining a third inner bore, a third upstream end, and a third downstream end, the third upstream end and the third downstream end having a third exterior engagement feature and a fourth exterior engagement feature, respectively, the third exterior engagement feature removably coupled to the second exterior engagement feature, the fourth exterior engagement feature removably engaged to the first exterior engagement feature; a first means for engaging the first exterior engagement feature and the fourth exterior engagement feature; and a second means for engaging the second exterior engagement feature and the third exterior engagement feature; wherein the first exterior engagement feature comprises a first flange, the second exterior engagement feature comprises a second flange, the third exterior engagement feature comprises a third flange, and the fourth exterior engagement feature comprises a fourth flange; and wherein a first wedge-shaped gap is formed between the first flange and the fourth flange; and a second wedge-shaped gap is formed between the second flange and the third flange.