to the guys that know everything about dart swingers...

Very nice! Looks to be a 72, with a 70 bumper and 70 grill. I believe a 71 grill has blacked out fins, where the 70 has grey fins. Very nice straight car, love the F8 green. Looks just like mine, minus the vinyl top. Post some interior pics and some engine pics when you get a chance. Looks like your headrests are in good shape too. If they're not faded, then you got lucky.