What ecu to use?

[brotow]

My 70 challenger will have a 340 and I have an small block electronic distributor. What would be a good ecu and which ballast resister 2 or 4 pin?

[Bullitt-]

Brother CP always recommends the Mopar Chrome Box, I was just on RockAuto & they have some clearance priced ECU's & ballasts.
All the conversion kits come with the 2-terminal ballast and from what I understand the newer ECUs don't need a 4-terminal

[anlauto]

REV-N-ATOR

[blown motor]

 

[Topcat]

The best there is for the price.
Distributor is pre curved to your set up.

http://www.4secondsflat.com/Ignition.html

12 volts to the coil.
3 year warranty

[Chryco Psycho]

the Rev-n-ator is awesome but there seems to be some reliabilty issues
 I used approx 5 of the FBO kits & the car ran better with every FBO piece removed & replaced , maybe his limiter box is better quality as I have not tried those

[Cudaragtop]

 

[dodj]

I'd go with an MSD box. I swapped out a chrome box for an MSD 6 and starting and bottom end were much improved. Pulls harder from a stop and starts with very little starter engagement. And you get rid of the ballast resistor entirely. 
Now excuse me while I get into my nomex suit before CP flames me. 

[tman]

FBO looks good and eliminates ballast resistor. 

[Chryco Psycho]

I'd go with an MSD box. I swapped out a chrome box for an MSD 6 and starting and bottom end were much improved. Pulls harder from a stop and starts with very little starter engagement. And you get rid of the ballast resistor entirely. 
Now excuse me while I get into my nomex suit before CP flames me. 

Not going to flame you , I am glad it is working for you 

[RCCDrew]

This is a good thread. I'm running an orange box and am ready to step up a notch or two.

[tman]

The only negative thing I can say about the FBO, is the commercialization on the cover.  At least make it look stock orange, chrome, or gold with an FBO logo or something. 

[blown motor]

That's one of the reasons I like the REV-N-NATOR and results from it have been flawless.

[dsburch]

If you go with the FBO HRR688 and the 40011 coil be sure to go with vertical mount for that coil.  I went with the 40111 which is epoxy filled so I could mount on the intake like stock.  The 688 and 12v coil which bypasses or does away with the resistor is working well so far, only a couple hundred miles, but very pleased, and with the same characteristics as the MSD comments.  (I can't comment on another product I have not tried.  All can be good... your mileage may vary.  )  Working fine with the old MP electronic dist, yes - Don says make sure the pick-up coil is not weak, so I refreshed it. 

[polarbear123]

I have had the Rev-N-Ator for 2 years works great.