Holley LS1 LS2 Dual Quad Hi Ram Intake Manifold Fuel Rail Kit # HO534-204 Rate_Special and Edelbrock Performer RPM heads

and Edelbrock Performer RPM heads only

Holden VT VX VY VZ Commodore Fuel Return Hose LS1 V8 Genuine GM

which puts beads of special elastomers around the ports for extra sealing power

Holley EFI speedometer additional details:

ensuring you get the most from your high performance engine at higher RPM's

Holley LS1 LS2 Dual Quad Hi Ram Intake Manifold Fuel Rail Kit # HO534-204 Rate_Special and Edelbrock Performer RPM headsHolley LS1 LS2 Dual Quad Hi Ram Intake Manifold Fuel Rail Kit # HO534 204 Fuel Rail Kit, LS1 for Dual Quad and cathedral port Hi Ram Features: (2) Fuel rails that are high volume, configured with 16 O ring ports (AN 8) (4) 20 UNC x 1 3 4 Zinc plated long socket head cap screws (4) Washers measuring 1 4 x . 50 O. D x . 06 thick (4) spacers I. D. x O. D. x 3 8 thick