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Old 06-12-2021, 08:47 PM
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Originally Posted by PAUL K View Post
A lot of good responses here. Does anybody have any experience with spacers on an EFI set up?
Funny you ask. Not sure about a port injected EFI with a dry plenum, but I converted both cars here over to Holley Super Sniper Stealth EFI and I kept the same carb spacers on both cars that showed improvement with the carbs in place.

Haven't been on a dyno since the change but as far as I can tell both cars run the same as they did with carbs. I suspect the throttle body EFI stuff will respond very similar to spacers as carbs do. One is running a 1.5" tall Wilson super sucker 4 hole that tapers to an open spacer, and the other car runs a 1" open spacer.

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