Recently dropped a few cylinders in the 91. With the miles over 200k, I'm putting together a new motor. I plan on running a boss block and a solid roller cam. Although it has recently been rebuilt, the cobra spec T5 probably won't like me shifting at 7500rpm. Hoping to put down 550 to the wheels with a 200 shot. I was thinking tko 600, but what are your thoughts on the g-force or A5 from astro? Thanks