Page 233 of GM Performance Parts 2006 Catalog by GM Parts Direct

Intake Manifold, ZZ572/620 engine F Intake Manifold, ZZ572/720R engine G CNC-Port-Matched Intake Manifold, Oval Port (Holley Carburetors) E 231 12499249 Ram Jet Fuel Injection Kit, with MEFI-4 Electronics (not shown) This retro-fit fuel injection kit is calibrated for a 502/502 GM engine and is the same as used on the Ram Jet 502 P/N 12499121. It may be used on other big-block applications by replacing the ECM unit with an aftermarket unit with the proper calibration. This kit includes brackets, sensors, bolts, nuts, gaskets, and other small parts, including: PART DESCRIPTION QTY 88962744 Service manual 1 12489400 Diagnostic trouble code tool 1 12490939 Lower intake manifold 1 12555320 Intake manifold oil shield 1 12366985 Gasket package 1 12367959 Bolt/screw package 1 12490505 Upper intake manifold 1 12489372 Upper intake manifold gasket 1 12487372 Fuel feed hose 1 10216948 Tube assembly-fuel press regulator 1 88961968 Engine harness assembly 1 10456208 Knock sensor 1 12489595 Bracket assembly, transmission cable 1 12489596 Bracket assembly, transmission 1 and throttle cable 12489597 Rod, throttle control 1 1104060 Distributor 2 1115491 Ignition coil 1 12464482 Lower intake manifold 1 12464484 Upper intake manifold 1 17113524 Body assembly throttle 1 12490257 Air cleaner kit 1 12569240 MAP sensor 1 25036751 Intake air temperature sensor 1 17090919 Injector assembly 8 17113222 Fuel injector retainer kit 1 17120039 Rail assembly, multi-port fuel injection 1 12570618 Fuel pressure regulator assembly 1 88962718 Module assembly engine cont. 1 15326386 Coolant temperature sensor 1 12464482 Lower Manifold, 502 Ram Jet (not shown) This aluminum lower portion of the intake manifold is used on Ram Jet 502 P/N 12497323. Use with upper manifold P/N 12464484 (see below), upper manifold gasket P/N 12489372, and eight bolts P/N 12490255. 12464484 Upper Manifold, 502 Ram Jet (not shown) This aluminum upper portion of the intake manifold is used on Ram Jet 502 P/N 12497323. Use with lower manifold P/N 12464484 (see above), upper manifold gasket P/N 12489372, and eight bolts P/N 12490255.

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