[marcocsx3121]

This thread raises some interesting questions. The low 12s with street tires is consistent with my experience with 3121 back in the 70s. While I have no idea how much power my 427 was making, with truly lousy traction I turned a 12.2 second quarter at around 116 mph. At the time, I was pretty happy having driven 150 miles to the track and running the car in street trim (mufflers, air cleaner, etc.) Fast forward to today's hotter replicas: If we're to believe the dyno numbers, there are a bunch of these cars with over 500 RWHP and race weights of 2500-2700 pounds. Forgetting the E.Ts, these boys should trap at over 130, but it doesn't seem to be happening, or at least nobody is posting these kinds of speeds. Now over in Corvette land, there are true street cars, some even daily drivers, that are running low 10s at over 135 mph. These cars weigh over 3400 pounds with driver, and are in the 525-575 RWHP range. Doesn't compute. What am I missing?