Converting Big Block to Coil per Plug

[ohcbird]

First off,what EFI are you going to use? most of them can be made to drive the CNP setup, or are already able to do so. If you don't mind the extra wiring & work to mount/hide them, they'll be worth the trouble. Look at DSE's customer site to see how they hid the wires on Billy Chandler's 55, you could do something like this:

http://www.detroitspeed.com/projectp...andler-sub.htm

Here's a few more good reasons to run them:

1. Since you'll have 8 coils, the average heat produced by each coil can be shed quicker than one coil firing 8 cylinders. This adds longevity to the life of the coil.
2. The spark will be more controllable & predictable across the whole range.
3. The odds of all 8 failing & leaving you starnded is much lower than one coil dying & you being stuck somewhere.
4. Most of the EFIs can pickup the coil feedback signal & detect a bad coil.
5. No messing around at the back of the engine for timing (one the sync is set). Sit in your seat & adjust till the cows come home.

As J2 said, don't waste your time on the MSDs. The factory truck coils are the way to go.