05/19/2026
We got this beautiful regal dialed in on Holley efi after making a few changes. We threw away the corvette fuel pressure regulator and got a real adjustable regulator from radium, we got a fuel pressure sensor, replaced the fuel pump and a coil pack to get it ready to calibrate. After we calibrated the Holley on the dyno in steady state, we got it out on the street to dial in the transmission shift points and speedometer. It did great and the customer was super happy with the product. Get with mvm for all of your Holley efi tuning needs!