Holley has released NOS Black Cheater Wet Nitrous Systems for 4500 Dominators, which have been developed specifically for 350+ cubic-inch engines with 4500-style intakes. Available for the first time in black, they use large Cheater nitrous and fuel solenoids and deliver 150, 180, 210, or even 250 extra horsepower.

They provide exceptionally smooth power delivery and come with everything you need to upgrade to nitrous: a half-inch aluminum injector plate that ensures ample hood clearance, a black 10-pound bottle and the brackets to mount it, solenoids, a -6AN feed line, detailed instructions, and all the hardware for a hassle-free installation.