I'm running 192cc 17 degree heads on a 347 with a custom cam and I shift at 6200rpms currently. I really don't think the SVO box is going to bridge the gap for you. The problem with running a big cam and head setup is that the manifold pressure at idle is way too low. I suck 11 in at idle, the computer freaks out if it drops below about 14 in at idle. It freaks out, throws a CEL, pushes the IAC wide open yielding an 1800 rpk idleand dumps fuel in fouling up the plugs.
Kurt
Kurt, you may be right, we will see. Again, this is mainly for the rpm adjustments, so I can reach my 6500 rpm shift point. I value everyone's opinion and advice, but I have to say this:
I am sometimes confused by the variations of advice a person receives on this forum. If someone wants to do a gt40 build, everyone wants to tell them to save for aluminum heads. If they want to build a high dollar stroker, they get told to swap in an Explorer motor with a tfs 1 cam. If they want an alphabet cam, they are told to go $400+ custom. I have heard numerous times on here about how the stock computer is very adaptable and tunes are not needed for most simple combos. In addition, I hear about how great fti custom cams idle and their great torque curve, that's why I spent the $400+ on it. This car will be tuned eventually, most likely by me with a PMS, but for now I just need the rev limiter changed and not melt the car down by having the afr too lean. I think the extender will cover that, I don't expect it to completely tune the car for max drivability or power, just keep it relatively safe.
Sorry for the rant above, it just feels like everyone gives so much conflicting info sometimes, it's hard to know what to believe. Kurt, I am not saying I don't believe your experience, I know you have way more years in this game then I do. It's just when you try to buy the best parts based on careful planning, I hate to hear it's not going to work, LOL. I hope that having the properly sized heads, good custom cam, properly working sensors and EFI system, and pro-m meter will be enough to have a decent idle.
BIG BREATH.....
Ranger joe... The guy I use for tuning is in New Orleans. I know you are in Georgia. He started a forum site when eectuning site went down.
http://www.efidynotuning.com/forum/ this is the site.
His name on the site is Decipha. Real nice guy and as far as I can tell he knows his foxbody tuning.
I have heard a lot of good things about him and read his posts on here and corral, he is a very likely choice if I have to seek professional help (that sounds funny doesn't it).
FWIW, a corral member emailed me the instructions, if anyone needs them in the future.
Joe