I am running the Proform HEI. It comes with a high output coil already. If you are looking for a great high output, check out the Hypertech Powercoil. Summit has them for about $70. I have used them before, and they are great units.
350 4 bolt, 383 Speed-O-Motive stroker kit with Speed Demon 750, HPC coated RPM intake,Proform High Performance HEI dist.MSD6a box,World Products Sportsman II heads, ported and polished with 2.02/1.60 valves,64cc,TRW forged pistons with 10.7:1 compression, Manley stainless valves,Comp Xtreme 284 cam,Crane pushrods, Comp Cam 1.6 full roller rockers,Cloyes true roller timing chain, Hedman headers that have been HPC coated, 2.5 inch exhaust with 40 series Flowmasters, 4.11 gears with TH350 and 3000 stall.Powertrax NoSlip Locker,Cragar Street Star rims with B.F Goodrich tires.