Quote:
Originally Posted by D-Rat
Not sure I know the difference, but it's one big hole. It's an Edelbrock RPM intake if that helps.
I'm looking at spacers...which is better - open design or 4 hole?
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If it is one open passage (not divided) than you most likely have a single plane square bore. You should be able to pick up a carb spacer at your local auto parts store/speed shop.
Just make sure it will match your carb and intake. The 4 hole designs should help as well, as Charlie said.
Here is a pic of a spread bore dual plane intake for reference.
