hard starting with new Edelbrock when warm

[Leviticus]

Originally Posted by D-Rat

Choke is working fine.

There is no carb spacer. It's bolted directly to the manifold with just the gasket in between. That explanation makes sense.

What part are others running here? How thick? Anyone have one laying around they're not using?

Do you have a spread bore or square bore intake?

[CharlieBrown]

my truck has a dual plane intake..never boiled

my surburban has a open intake..it boiled until I installed the spacer

[D-Rat]

Originally Posted by Leviticus

Do you have a spread bore or square bore intake?

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?

[CharlieBrown]

use the 4 hole

that should stop your problems..and it will also help you idle circuit

[Leviticus]

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?

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.