That's a good question...depends on what you plan on doing with it. If it's only a strip car, go with the non-vacuum advance distributor run through the MSD box. It'll be great. If you drive it on the street, then I would go with the vacuum advance-equipped distributor (stand alone if you want to be able to run it without an MSD box or non-stand alone if that isn't an issue). You will need to swap to a distributor gear that is compatible with a roller camshaft.
its pretty much a race car with insurance, only diving on weekends and to the track, im planning on running the msd digital 6 box and hvc coil. just wasnt sure on the dist.