Ok first of all I am add efficency to the beast the rods, some J&E forged blower/turbo pistons. then I will also be adding a head done by Carpenter Racing along with a very large lift set of Cams say in the .440 range on the intake. this should help the beast breathe better. I think I am going withthe Hombre fuel regulator modification to put out 60 psi verses the stock value of 43.5 psi. I might change the injectors but first I am waiting on the report form Hombre on the 668 cc injectors supplied with the supercharger kit as their usability might increase with more fuel pressure. I suspect if reliability is there to tune to 7800 rpms. boost should be over 17 psi. after that we shall see as I still want to run pump gas and cruise her when ever and where ever I want. If I decide to spin 9k it will take the addition of 1000 cc injectors to make that happen. at 7800 theoretical speeds should be above 200 mph lord knows what it would be at 9k but I will have to work on some aerodynamics for stability.