Turkey day confusion and 10% off

[Tropicalcats]

 Ok Mancini's is running a 10% off Black Friday sale and I'm Looking to pickup an electronic ignition and can't see the differce between these two except the price. Can somebody explain it to me. I have a 70 Challenger 383 4 barrel LA car with ECS

http://chucker54.stores.yahoo.net/maraeldicoki.html
http://chucker54.stores.yahoo.net/mrepr38elcok.html

[HP_Cuda]

Looks like either will work - one is a Prestolite and the others are Mancini brand.

Just make sure to order the 383 model and you are set. There are some options like chrome box or orange box but thats about it.

 

[Chryco Psycho]

Looks like the first one has different springs in it for a faster advance curve , I would buy one with the adjustable mechanical advance & chrome box , or better yet  a Rev-N-Ator box if available