mobythevan Posted October 5, 2004 Share Posted October 5, 2004 Ok, I have an intake manifold that is not TPI or LT1 but I did borrow a TPI fuel rail from a friend and the spacing of the injectors on a single rail is correct for my manifold. The angle of the rails on the assembly is wrong but I can cut the pipes and fix that. So, this raised the question is the spacing of injectors on a single rail the same between TPI and LT1? Just on one rail, left or right. Also, what inside diameters do TPI and LT1 rails have, I couldn't disassemble the rail I borrowed. From what I have read, LT1 rails will flow more fuel, but I haven't seen any dimensions. Quote Link to comment Share on other sites More sharing options...
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