Which CDI for fully built motor?

[TooFastForYa]

I have a 416EX with a megacycle cam, hardened rockers, ss valves, port/polish.

However I am still using the stock CDI but I am looking to get a new high-rev CDI.

How much difference will the new CDI make. What brand is recommened?

Thanks,
Adam

[TC426EX]

TC Racing or GT Thunder.... 'nuff said

Best rev boxes for the EX and yes, they make a difference...

[JDiablo]

i run a magnum and no problems,it seemed to help alot to,that extra RPMS in each gear

[j753301]

i have the tc racing rev box and its great,i love it.starts good too.

[Bigg Pimpin]

DynaTech is by far the best box out there for the 400ex. It has 4 different timing curves to select from and if you get the program to go with it you can change the curves and rev limiter to suit your own needs. Just depends on what you want to do with it. :D