Match-Ported manifolds to match the EMPI GTV-2 Wedge-Port Heads. One of the benefits of porting is that you can replace your manifolds at any time and still have an exact match to your cylinder heads. This Off-Set intake is Port-Matched for Stage 1 Cylinder Heads for HMPX/IDF/Dellorto Carburetors. Sets are complete with all hardware & Gaskets.