I have dart pro 1 aluminum heads and a Edelebrock high flow TPI base (also aluminum). Im having a hard time deciding what the best intake gaskets are for this application. The closest sizewise seems to be a the felpro 1204s but those i guess are not good for aluminum? Here are the sizes im dealing with and maybe someone else will have a better answer for me.

Head ports
2 1/16" x 1 3/16

Intake ports
1 15/16" x 1 3/16

 

Hmm. Felpro are all I use. Especially on high performance applications, which tend to be aluminum. Sounds like the 1204 is right for your port size. Be sure to seal the coolant passages with permatex ultra black on both the head and the manifold. Also, use "The Right Stuff" on the end seals.