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Typical dyno tested horsepower gains average 10-15 and 15-20lb-ft of increased torque
Single Probe
2000-2006 Chevrolet Suburban 2500
Progressive rate Polymer bumpstops
Holley Main Jets (2) - 90 Fuel Tank Filler Hose Typical dyno tested horsepower gainsSet of two carburetor main jets. Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and
