Has anyone had a problem with a large space in the front and back of the block between block and intake. Block has had a cleanup (401) heads are Indy 401SRK's, intake is an Eldelbrock Torker. Port matching is right on but a large opening in the front and back is perplexing. Was thinking of machining a piece of flat aluminum to front and back to make up the opening. Anyone with idea's or has run across problem with answers. Scratching my head in Ohio.