i ran that 262/.575 cam in a 11:1 440 on the street with a 3500 stall. it worked fine. i also ran the 244/.550 cam in that same motor (actually both cams ET'd about the same). the .550 cam was probably a little better in the 440 on the street. but in the 493 that .575 cam will work just fine.

put it at zero deck or even a couple thousands out with a 0.040 gasket.