The manifold was machined out a little to fit the injector. It was done because its easier to find ls1 injectors and I didn't want to have bosh injectors be my only option.How was it modified for LS1 injectors? Also curious on what the return means.
You should be fine, from what I've noticed more people want the rail instead of a intake manifold. For what reason I have no idea. Good luck with your sale though, hope it goes better then this oneI don't get it either. Makes me feel like my price for my motiv PI kit is high even though it's a great discount off new.