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A Little Evil Under the Hood

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Holley just released its new Black NOS GM LS Wet Nitrous Systems made just for drive-by-wire applications and capable of delivering up to 250 additional horsepower. Available for 4-bolt, drive-by-wire or cable operated throttle bodies in 90mm, 92mm, 102mm & 105mm plate sizes, these kits are “Wet” plates, meaning the additional fuel is added though the nitrous system, so there are no requirements for an injector upgrade.

Included in each kit is a 10-pound nitrous bottle, jetting for 100, 125, and 150 (250hp jets available separately) additional horsepower, a billet aluminum nitrous plate, two black top solenoids, a hard line, all the necessary hardware, and detailed instructions.

NOS’s new Black GM system retains the stock throttle body location and orientation using a 1/2-inch billet aluminum plate. Power levels up to 250 RWHP do not require injector upgrade, however, the total fuel supply system must be sized according to expected power levels. It is also recommended to use a 1 step colder spark plug up to 150 RWHP, 2 steps colder spark plug on 200 and up. For more information, visit www.holley.com.


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