I went with MSD 6AL. L&L made a big deal bout the pulleys and brackets... but I don't think you need them. Definitely not the pulleys,they are underdrive but as I said, they start squeeling and the grooves get wallered out. If you have a complete motor w/ access. brackets, you should be good to go.
Motor mounts,headers,rear sump oil pan,and oil filter relocater...I believe those are the main issues.
If you have questions, email me as I only get on the computer a couple times a week, but my wife checksthe email perty reglar!