alum edelbrock heads

mikedevore said
Keep in mind, that you will loose a point of compression due to the material the head is made out of.

Aluminum from what I understand, dissipates heat quicker than Iron.
I ran 32 degrees total with the Eddys vs 35 degrees with iron heads.

If the iron was open chamber and ede's closed, that's more of a factor in timing than the material.

IMO, don't ever buy the open chamber ede heads.