I have come up with a L98 engine, harness, ecm and pretty much anything else I need out of the donor car which is a 91 Trans Am GTA. I am very mechanicly inclined so that is not an issue but I am looking for advice on little tricks or tips or things to look out for. Some of my bigger questions are fuel pump and regulator and am I going to need to fab up a return fuel line. Is the p.s. and alternator going to work off of the stock L98 engine and fit without any clearance issues? I do know I will have to have some new p.s. lines made up. Will my current headers work? What and where can I get the adapter for my speedo so I can get a signal for the ecm but keep my mechanical speedometer. Ive done a fair amount of research and haven't seen a lot of LS1 swaps but not a L98 swap. Will my flywheel bolt up to the crank? Any help or tips would be appreciated.