I have my 4.8 swapped in my 91 obs now I have a cam specd by Martin at tick performance but haven't installed it.i plan on arp studs and ls9 gaskets my fuels system is a fuel cell, aeromotive 1000 pump with -8an lines feed and return no injectors yet 76 mm q trim magnum I really badly want to be at 650 + hp to run low eleven or high tens but also want It to last at least a year only weekend driving maybe 1500 miles every six months and I will run e85 if needed to help with tuning for reliability