I wasn't sure where to post this. My Dad recently had a 408 built and installed in his '93 Lightning, but is now lost as to what to do with his current stock speed density system. He's had some contact with Diablo, but could use some help from someone who's had personal experience with this before. It all works well to a point, but it runs out of breath before he can really feel where all that money he spent on the build went. Appreciate any help.
Thanks, Troy

 

hit up the Gen 1 guys on Lightning Rodder or NLOC, there's several still running the speed density