Get the Moates Quarterhourse.You tune it like the Tweecer but it is a lot faster with datalogging and you can log more parameters that Tweecer. It is about half the price of Tweecer and is way better. read all about it here: Moates Support : Quarterhorse andread in the FAQ section about it here www.eectuning.org I've had all three and you can't beat the Quarterhorse. If you insist on the SCT, chip, I've got one that was in my '91 notch for a while that I'll sell you for cheap.