So I finally got around to installing my new exhaust from front to rear using a Sprint exhaust manifold, studs on the headpipe, new Bosal pipes all the way back, and a used Bosal mid muffler, and new Bosal resonator. Everything went fine, though with lots of cussing on getting out the old headpipe. :banghead:
I also added a new radiator, new crank pulley and new (free) Hotspark and 3 ohm 40K volt coil. I reused the carb gaskets and installed the heat shield, but installed a new intake/exhaust gasket.
Everything went well until I went to start the car. It will start and run OK, but it runs like it has a huge vacuum leak.
I wasn't able to locate the leak, but I recognize the symptoms. It wont idle, or even run under 1500 RPMs, and it hesitates and sputters when revving the motor.
I suspect the problem is the carb gaskets, but I did some research here and saw that some had to trim the Sprint to make it work with the stock intake. The leak seems much worse than a simple carb gasket.
I am ordering new carb gaskets, but would like some input on what part of the Sprint manifold needs trimming?