Home/Custom EFI Carb Replacement Systems Holley Super Sniper EFI for boost / nitrous, self tuning with handheld, 650hp $2,138.68 Holley Super Sniper EFI for boost / nitrous, self tuning with handheld, 1250hp $2,673.73 Holley Sniper Xflow EFI Conversion, 800hp, self tuning with handheld. $2,228.58 Holley Sniper Xflow EFI Conversion, 1375hp, self tuning with handheld. $2,740.43 Holley Sniper Stealth 4500 EFI for boost / nitrous, self tuning, 1500hp $3,030.43 Holley Sniper Stealth EFI Conversion, self tuning with handheld. $1,970.48 Holley Super Sniper Stealth EFI for boost / nitrous, self tuning, 650hp $2,390.33 Holley Super Sniper Stealth EFI for boost / nitrous, self tuning, 1250hp $2,827.43 Don’t see what you are looking for? Give us a call or send an email. We sell thousands of additional parts not listed on the website.