We love this one. The Edelbrock X1 Ram Log (PN 2150) for ’55-86 Chevy 283-327 small-blocks. This is another one of Edelbrock’s early designs. Not as early as the Slingshot, but it goes back to the beginnings of the Chevy small-block in the ’50s. We studied it looking for any slight variation between old and new. The plus-sized runners are the same. The plenums and ports are the same. The logo and the X1 stamping—the same. We would have already known this if we had checked the Edelbrock catalog. Vic Edelbrock Jr. wanted an exact clone of the X1 his father created.