GPX CDI Box

vmaxcrazy

New member
Joined
Feb 19, 2008
Messages
64
Age
69
Location
Clio, MI
Looking like I may have a bad CDI Box on my 74 338 GPX. Has anyone tried the Fireplug CDI's. Are they any good? Sled is 100% stock, and would like to keep it that way but having trouble finding "GOOD" stock CDI.
 

for reliability the hewetech box is the way to go i have a few customers that run them with no problems on there stockers ... even have a few on some super stock engine packages with no issues .... just one less thing to worry about is the ticking time bomb stock cdi
 
Found a "good" used cdi box. I'm going to give that a try. Also got new external coils to try too. Talk to the guy at Hewtech and found out he can put his wiring into an old non working cdi box. If new parts don't work I'll have to go with the hewtech box in a old GPX cdi unit.
 
even if the box works, it is not a question of if it will fail but when ..... when i go racing i bring 3 spares along just in case .....
 


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