Hi IAN The welt uses a series of small tack holes to be held in place with small spiral type nails / tacks ( cowl ). I think it should ends where the last tack hole is ,as not to Affect the hood and radiator areas lining up when hood is compressed down by the hood T- hooks on the body, radiator area uses screws flat head with nuts these also hold radiator ears in place, {small nuts behind ). Also Ian I have located rear window weather stripping for 34 exact fit with lip to seal , looks great. if you and others are looking I will have them shortly enough to do rear windows aprox, 72 inches $75 plus shipping, Steve