904: should I switch to 727?

My Cope Racing 904 RMVB is rated up to 850hp with a transbrake. I've owned 3 of them and they've never given me an issue. When fully built, they cost about the same as a 727. My car weighs just under 3000lbs.

Cope told me the 2 things that kill 904s are heat and shifting too low in the RPM range. 904s like to spin. Not too difficult to manage with a MVB but if your kickdown linkage isn't set right, you can hurt them. Just my experience

Both the 904 and 727 have their advantages and disadvantages. Just depends on the goals for your car.