Nearly every pos piggy back tuned car is/was/ and forever will be a stumbling, erratic, temperamental heap with the worse possible drivability--->Which also describes pretty much ANYTHING with a carburetor. Which also explains why EVERY major Carburetor manufacture, Holley, Demon, Edelbrock, MSD, produce Stand alone EFI replacements, so the carbs can be PITCHED. This is because so many of their customers are used to the near perfect drivability of their EFI daily drivers and refuse to compromise.
Let me be very clear, running a pos piggy back required abandoning any hopes of having the stock tune's drivability. A proper E85 calibration will give great power AND provide completely stock drivability.
BTW,,,Dynos sheet are fun to talk about, but WOT is by far the LEAST form validation of a proper tune or tuning process.
Last edited by duster360; 11-12-2012 at 09:28 AM.