School me on 340 exhaust manifolds
Don't know where maple ridge is but here is a set currently for sale in Ohio on craigslist
http://akroncanton.craigslist.org/pts/4606865299.html
See the date codes in his pictures..... first 2 digits are the month...next two are the day ....and the last digit denotes the year
Also, so you know there is a special bolt/insert/sleeve nut kit to install these that you must buy....I will see if I can dig up a link to the kit
[ame="http://www.ebay.com/itm/68-70-Mopar-A-E-Body-Cuda-Dart-340-Exhaust-Manifold-Fastener-/380976219389?pt=Vintage_Car_Truck_Parts_Accessories&hash=item58b3f3c4fd&vxp=mtr"]68 70 Mopar A E Body Cuda Dart 340 Exhaust Manifold Fastener | eBay[/ame]