Looking at the '90 its hp/trq #'s, you should be shifting between 4500-5k,
Based on the gearing and diff gear(5.29 stock if correct), at 40mph w/29's your rpm's are about 2100, which is too low to have any performance due to its hp/trq #'s and where its power band is,at 60mph it would be about 3100rpm's.
Hey Snowtoy,
Does your magic program that generated this curve know anything about the Charade engine torque and HP curves? Info on the web is scarce, but I'd love to see some actual curves. My best guess is that the Charade engine might just like to rev way up. Of course, though, if this is a Charade/Rocky hybrid engine all bets are off.
