got a 76 f250, 460 , eddy intake, 85- holly, dual 3 inch exhuast, it has a cam now, motor has been rebult...has msd and ported heads....would a motha thumpr work on stock heads? i belive the 460 is a 83 motor

 

It depends on what your goal is. The thumpr series are not the only cams you should look at. If you have a good idea of what u want out o your motor, give the guys at comp a call. They will have a good idea what cam to recommend. The ford racing group guys are pretty knowledgeable also. I'm not saying we can't help here, but we need to know your application as well.