Throttle Body Shop

TBS 10203

Throttle Body Shop TBS 10203 40hp PU Kit 1986-95 Gm TBI Motors

Throttle Valves

GM TBI 40hp power up kit. Includes injector spacer (design may vary), 14psi regulator spring and instructions on modifying you OEM stock TBI base to add enough fuel and air for up to 40hp gain. Great for motors with headers, air intake and small cam upgrade
Fits: 1986-95 2.8L 4.3L 5.0L 5.7L 7.4L TBI motors Silverado Sierra Suburban Yukon Blazer Camaro Firebird Caprice S10 Jimmy
Includes injector spacer, 14psi regulator spring and instructions on modifying your OEM stock TBI base to add enough fuel and air to support up to a 40hp gain
This kit adds 15-17hp on a stock 5.7L TBI motor - more if you add exhaust or mild cam
2nd photo shows what these modifications to you TBI looks like - red arrow shows spacer

GM TBI 40hp power up kits. Includes injector spacer (design may vary), 14psi regulator spring and instructions on modifying you OEM stock TBI base to add enough fuel and air to support up to a 40hp gain. Adds 15-17hp on a stock 5.7L TBI motors. Great for motors with headers, air intake and small cam upgrade

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