Pop the distributor cap and look inside, you'll either find two sets of breaker points or one. You'll know what they look like when you see em. There's a 99% chance it's single point distributor.
My info came from Pat Ganahl's book. Take that for what it's worth. In this book (Ford Performance) I've yet to find wrong info, unlike George Reid's books. He says the Boss 302's also had vacuum advance dual points too.
sure enough i just went to google images and some boss 302's had vacuum advance and some didn't, guess i never really paid that much attention after all....
I believe I have a single point distributor...Im going to order the Accel points eliminator part # 2020 and one of the coils they recommend...do I just bolt this part on or do I need to set the timing after Im done...I know people said this is a fifteen minute job. Thanks.