cam for a 360?

With 8.5 to 1 compression and only a 2200 stall converter I wouldn't go with anything bigger than the 268xe and to be honest I'd probably only go with the 262xe. I had a 274xe in my 360 with a 3000 stall and 4:11 gears and 9.8 to 1 comp. It ran good but I could tell it really needed the loose stall and low gears. Also does your car have power brakes? If so the 274xe probably won't pull enough vacuum to make them work properly. Only pulled 9 inches in my 360.

BTW: You might also consider either the Lunati 60402 or 60403 voodoo cam. I replaced the 274xe cam in my 360 with the Lunati 60404 and it has more low end grunt and idle is nearly identical. The 60402 is comparable to the comp 262xe. The 60403 is comparable to the 268xe.