[38 coupe]

Any of the stock 8BA cams will work, the shorter duration versions will maximize low end torque at the expense of mid and upper range horsepower. I would look for the best condition camshaft rather than a specific version. It will be important to identify the cam since valve lash changes depending on the factory grind.

Another cheap effort that will be felt in the seat of the pants is to get the piston to head clearance to about 0.050. I keep a used head gasket around so I can bolt a head down and measure the clearance with tin foil balls, then surface as needed to get where I want.