egr? to eddy rpm intake match up on a LA318?
Those are 340 - 360 port size.
You need the gaskets for 273 - 318 port size.
http://www.summitracing.com/parts/fel-1243
Mancini sells the MOPPA4286569AB
Intake Gasket Set {w/ Stainless Exhaust Heat Cross-Over Block-Plate inserts}
Depending on your Daily use, you can play around with 'restricting' the heat flow.
Those are 340 - 360 port size.
You need the gaskets for 273 - 318 port size.
http://www.summitracing.com/parts/fel-1243
