[Dave at Pelican Parts]

If there are holes in the intake, the engine will never run right. L-jet EFI relies on having ain intake that only lets air in through the air flow meter. Any air that gets in elsewhere will not be measured by the AFM ("unmetered air" or "false air") and will cause the mixture to be lean. A very lean mixture will not ignite.

1.8s hate vacuum leaks...

--DD