360 cam ???

I have 3:23 sure grip rear for it. Would love to use them but realize I may have to go to 3:91-4:10's unless I go with a smaller cam like the Thumper. I also have 245-60-15 and 275-60-15 tires I can use. Don't know if the 275's will fit in my 67 Cuda wheel wells without modification. Probably will go with 2.02 J heads as the cash flow doesn't allow Edelbrocks at this time. I have a 71 340 intake but may get an air gap instead.