A flow wrap machine comprising: a film dispenser for supplying a web of film; a transfer head for receiving the web of film from the film dispenser and redirecting the web of film to travel in a machine direction, wherein the transfer head is adapted to manage the web of film to provide an interior space bounded by the film; an infeed conveyor for transporting a series of products and sequentially delivering in the machine direction a preceding product upstream from a following product from the series of products into the interior space of the film in repeating fashion; a longitudinal sealer for continuously sealing the film together to form a tube enveloping the preceding product; and an end sealer unit that in repeating fashion while the tube is traveling (i) provides a trailing edge seal transverse to the tube upstream from the preceding product to create a packaged product, (ii) provides a leading edge seal transverse to the tube downstream from the following product, and (iii) severs the packaged product from the tube and between the trailing edge seal and the leading edge seal; the infeed conveyor comprising an incoming conveyor for transporting the series of products; characterized in that the infeed conveyor further comprises a flow wrapper conveyor for receiving the series of products from the incoming conveyor, wherein the flow wrapper conveyor is upstream from the transfer head; the incoming conveyor and flow wrapper conveyor are operable at differing conveying speeds relative each other to set the spacing between adjacent sequential products; and a product height sensor is configured to measure the height of each product of the series of products while transported on the incoming conveyor and to communicate the product height information for each product of the series of products to a controller configured to adjust the relative speeds of the incoming conveyor and the flow wrapper conveyor to set the spacing between adjacent sequential products based on a comparison of the product height information. a film dispenser for supplying a web of film; a transfer head for receiving the web of film from the film dispenser and redirecting the web of film to travel in a machine direction, wherein the transfer head is adapted to manage the web of film to provide an interior space bounded by the film; an infeed conveyor for transporting a series of products and sequentially delivering in the machine direction a preceding product upstream from a following product from the series of products into the interior space of the film in repeating fashion; a longitudinal sealer for continuously sealing the film together to form a tube enveloping the preceding product; and an end sealer unit that in repeating fashion while the tube is traveling (i) provides a trailing edge seal transverse to the tube upstream from the preceding product to create a packaged product, (ii) provides a leading edge seal transverse to the tube downstream from the following product, and (iii) severs the packaged product from the tube and between the trailing edge seal and the leading edge seal; the infeed conveyor comprising an incoming conveyor for transporting the series of products; characterized in that the infeed conveyor further comprises a flow wrapper conveyor for receiving the series of products from the incoming conveyor, wherein the flow wrapper conveyor is upstream from the transfer head; the incoming conveyor and flow wrapper conveyor are operable at differing conveying speeds relative each other to set the spacing between adjacent sequential products; and a product height sensor is configured to measure the height of each product of the series of products while transported on the incoming conveyor and to communicate the product height information for each product of the series of products to a controller configured to adjust the relative speeds of the incoming conveyor and the flow wrapper conveyor to set the spacing between adjacent sequential products based on a comparison of the product height information.