Owners manual

Catalog #2181, 3781, 3783, 7181, 7581

Rev 9/3/15 - QT

Brochure #63-0034Page 2 of 3

• GASKETS: Do not use competition style intake gaskets for this street manifold. Due to material deterioration over time, internal leakage of

vacuum, oil, and coolant may occur.

INTAKE MANIFOLD REFERENCE RECOMMENDED GASKET

2181, 3781, 3783, 7181, 7581 Edelbrock #7220 Port: 1.20” x 2.00”, .060” Thickness

NOTE: To ensure maximum performance and a proper seal, Edelbrock gaskets which are

specifically designed and manufactured for use with Edelbrock parts must be used.

• CARBURETOR RECOMMENDATIONS:

Manifold 2181, 3781, 3783:

CARBURETOR REFERENCE PARTS REQUIRED FOR INSTALLATION

OEM B, H, N

Manifold 2181:

CARBURETOR REFERENCE PARTS REQUIRED FOR INSTALLATION

Performer #1405 (600 cfm) A, I, K, N, O #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Performer #1406 (600 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Thunder Series #1805 (650 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Thunder Series #1806 (650 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Thunder Series #1825 (650 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Thunder Series #1826 (650 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Manifold 7181, 7581:

A - Carburetor will work with non-EGR or pre-emission control systems.

B - Carburetor will work with EGR system.

H - Carburetor has provision for evaporative canister.

I - Carburetor has no provisions for evaporative canister.

K - Carburetor requires #8008 or #8024 stud, washer and nut kit. Determine proper length based on gasket thickness and your accessory mounting

requirements.

N - Carburetor accepts factory cruise control

O - Carburetor comes with manual choke. It can be converted to electric choke using kit #1478.

P - Carburetor is not a stock replacement part

CARBURETOR REFERENCE PARTS REQUIRED FOR INSTALLATION

Performer #1407 (750 cfm) A, I, K, N, O #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Performer #1411 (750 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Performer #1412 (800 cfm) A, I, K, N, O #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Performer #1413 (800 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Thunder Series #1812 (800 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

Thunder Series #1813 (800 cfm) A, I, K, N #1491 or 1846 throttle plate kit, #1483 or 1844 throttle lever adapter

• PREP AND TUNING FOR POWER:

Performer Series Intake Manifolds

1. The long equal length runners in the Performer manifold create a very strong signal to the carburetor. In some applications, the stock

rods or jets may need changing for best overall performance. Refer to your carburetor owner’s manual for details.

2) Performer manifolds deliver excellent drivability and power utilizing stock distributor settings. Some applications may benefit from

resetting the initial advance ±2° from the factory specification.

3) Aftermarket ignitions and more aggressive advance curves may be used with Performer packages.

4) Installation of aftermarket headers or camshafts may lean the carburetor calibration. Should this occur recalibrate with a richer jet.