scientific wild azz guess.

The 741 is an agressive lobed cam compared to what? I know of at least a dozen engines that have ran that cam past 300 hours without issue. Also, many have used that cam and made very good power for an off the shelf marine cam. With everything from 088 heads to afr 315s ..etc.

In certainly no cam expert but id be willing to bet the lobes on that 741 are alot easier on the valvetrain than these .681, .697 , +400 lobes that have the same or similar .050 duration numbers.

The crane merc 525efi cam is fairly similar to the 741 grind, and a buddy just freshened his 525s in his 37 active thunder that had 500+ hours. No issues at teardown.

So what did it make? Did it get built.

while we are talking about this deal, I think the dominator is way overkill for this....