Building up a Dart
If you don't use a column shift you can put in a B or RB with the B body manifiolds and only have to trim the column tube just a little to flush it with the firewall. You will have to lightly grind the bend in the drivers side manifold for the RB to clear the steering shaft though. Running 2 1/4 pipes all the way with a good "H" or "X" pipe really adds to the bottom end power. I made my own elephant ears out of 5/16 plate and had the waterpump housing milled accordingly for stock pulley use... (factor in thickness of dual gaskets). For you guys up north you may never have had the heating issue but.... My daily big block drivers had issues in the summer untill....... I started using the 195 degree or higher thermostats!!! Yes.... the hot thermostat cools better in the summer or in stop and go driving because ...... it slows the coolant down allowing it to transfer/exchange more heat. Much cheaper than an aluminum radiator..... HTH
BD