Help determining 340 cam

Grinders #'s are usually on the front face of the cam.

You can adjust your rockers based on what they are set at right now. Some MAY be looser than others but this method works OK. The milder the idle the closer the clearances are as a rule. Or you can start at .014 and go from there.

You could also pull the cam and have it Cam Doctored to get the real specs. Or ditch the TF and install a 4 speed!