I posted ways to get a hold of him in the thread w/ the dyno numbers here https://dodgeforum.com/forum/2244594-post6.html. I think there may also be a number on his site if you want to call. I just paypal'd him after talking w/ him on dodge talk for awhile.
The crank pulley on the 4.7 and 3.7 from 02-07 are the same, I'm not sure about 08 since the 4.7 was redesigned then. The Spectre CAI requires a longer coupler which you can pick up from lowes or home depot. I recommend you get the mopar knockoff sold under names bomz/bombz, kool vue, or velocity on sites like autopartswarehouse, it should be like $80-90. Just get the one for the 4.7 and it should bolt right up. For the exhaust just order a magnaflow muffler and magnaflow y-pipe and take them to a shop and have them put them in. At most for the parts and labor on the exhaust should be $300, probably less. I think the y needs to be 2.25" on the 2 inlets and 3" on the outlet and the muffler should be 3" in and out unless you want it to be dual out or something then I'd stick w/ 2.25" out, double check the size before you order.
i was reading your mods and i looked them up too see if i can get them for my truck but it seems like everything is for 4.7s how did you get some of those mods did you just get the 4.7 i am mainly talking bout your spectre CAI, asp under-drive pulleys, and your magnaflow exhaust if you can please reply back that would be great thanks
I had too put the bracket on the filter end in a vise and bend it to get the pipe to line up closer to the TB. I also had to get a longer coupler from lowes to connect the TB to the pipe, I used a big fernco coupler that was about $7 from home depot. Good luck.
I was reading one of your posts about the spectre intake kit that you installed and it didn't fit right.. I just got the same kit and I ran into the same problem, the tube is offset to the left of the throttle body. I was wondering if you ever came up with a fix for this or if you got ahold of spectre.. Any help would be apperciated..