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Holley EFI Plenum Top for Ultra Lo-Ram 300-621 300-604
Model: 4008356
Condition: NEW
The Holley LS1/2/6 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE or aftermarket cylinder…
Holley EFI LS Ultra Lo-Ram Plenum Top 300-605BK
Model: 4008337
Condition: NEW
The P/N 300-605 & 300-605BK Ultra Lo-Ram plenum tops are designed as part of the Holley LS Ultra Lo-Ram EFI intake manifold kits. The Ultra Lo-Ram kits are intended for boosted engine applications where the requirement of a intake…
Holley EFI Plenum Top for Ultra Lo-Ram 300-621BK 300-604BK
Model: 4008247
Condition: NEW
The Holley LS1/2/6 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE or aftermarket cylinder…
Holley EFI LS Ultra Lo-Ram Plenum Top 300-605
Model: 4008245
Condition: NEW
The P/N 300-605 & 300-605BK Ultra Lo-Ram plenum tops are designed as part of the Holley LS Ultra Lo-Ram EFI intake manifold kits. The Ultra Lo-Ram kits are intended for boosted engine applications where the requirement of a intake…