Just wanted to make note I'm not certain timing events are the same for gen VI cam 169651 as one listed above. One above is 139651 non step nose. I would imagine they are but...

That would be a good cam for his application if it wont revert.
still is going to have to prop the boat for 4800-5000 rpm.
And both the numbers have the exact same timing events just one is a step nose and the other is not.

sent you a pm

same cam except for nose.

651 should pull peak 5,700-5,800 easily in a 540.

I assumed they were but you know what assumption can be remember? The mother of all fk ups. Mike you've used the 651 in several builds. What's typical peak hp in a 540 +/-? Also is there known reversion issues with wet exhaust. I wouldn't think it would but I'm not certain as I've never used it.

Better yet Mike whats the torque difference between 5000 and 5700.and please take into consideration the 088 heads and wet exhaust.
And yes please educate us on if it will revert.

i never used a 651 in a n/a engine but in my blown 548s if i remember correctly they peaked around 6400 rpm.

i think the torque curve was pretty flat,they made good torque from 4000 on up.i am to lazy to go to the shop to look at the dyno sheets,also i was not worried about reversion due to dry exhaust.

You don't prop to peak torque if that's what your refeering to... well you can but will be a total turd.