Car is a 97 SS vert 355 with a procharger. made 546rwhp with no spark or fuel tuning at 5400rpm! we ran out of fuel so i added a 2nd intank pump and 80# fuel injectors. it gets strapped back on the dyno tuesday morning to get the tune finished. theres not a doubt in my mind the car will make 650 plus getting the last 1000rpm out of it and adding some timing and fixing the fuel curve!