Like many others, EFI System Pro allowed me to dial a new Holley Sniper. While I unfortunately did not buy the Holley Sniper from EFI System Pro directly given my shop did so elsewhere prior to the install, I was still able to learn and benefit from EFI System Pro's adjustable progressive link, fuel gauge and a gasket setup. Most importantly EFI System Pro's technical support articles are hugely helpful getting up to speed on basic and advanced tuning whether using the Holley handheld screen or Holley Laptop software, thereby reducing the pucker factor and steepening the learning curve. Highly recommend their article "Tuning Your Engine Start-Up" which allowed this noob to better understand the system capabilities and make slight DIY tune adjustments on the handheld to dial in a cold start challenge. Lastly, one can stop going down the bottomless rabbit hole of Holley phone support and forum threads which were beyond my ability or patience levels. EFI System Pro is amazing, they should be every customer and technician's one stop EFI shop.