I just recently replaced the carpet in my 1969 with ACC's carpet. I am very pleased with ACC's pre-molded carpet which is include the correct pre-cut seams for the front seat tracks.
I allowed that flap of vinyl material to overlap onto the floorboard then trimmed the carpet to fit snug against and hug interior panel. I cut the carpet about 1/8” – 1/4" longer than needed to make sure it stayed snug against the interior panel. Make sure the carpet is relaxed. I left my carpet in the direct hot sun for about an hour before installing the back section first, then the front section. A steamer can also be used to warm the carpet and smooth out any wrinkles. I don't have a steamer but the hot sun really help warm and soften the carpet and allow it to push into place in the foot wells, etc. Make sure to push the carpet down into the footwells BEFORE you trim it. If you do not do this, when you step onto the carpet in the footwell, the trimmed edge will pull away from the interior panel. You can always trim additional carpet material later after it is installed and relaxes in the car
To help keep the vinyl flap in place, and the carpet in place over the vinyl, I used several drops of adhesive from a hot glue gun. The carpet will also be held in place with the seal plate. I'll post a photo if it would help I get home from work this evening.
Dave
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