hello from greece.for 4 years I have made the [mpi] engine and have covered 150000 teased and other 100000 regularly.for any information or problem I will be glad a lot I help you...I have placed ihi vl4 turbo,extra ecu with 2 extra injectors.4 bigger injectors,titanium pistons,60mm excaust system,racing catalyzator...if somebody does not want το use titanium pistons exists solution 4mm gask tesk to culinder head.and use garrett 2,5 on 0.8 bar boost...or ihi vl3 from uno.exsaust and fuel system the same with titanium pistons.ihi vl3 and vl4 start at 1.0bar.