You got it covered!
 

Wow Tom, what a great engine! I don't think you need any help from me! That is sure going to be a big camshaft though, I hope you have bumped up the compression a little. I would think that your maximum horsepower will be over 6,000 rpm. I hope you are ready to deal with those big rpm numbers. Big valve springs and lots of downward pressure on the lifters at idle! Buy a valve spring compressor and valve spring pressure tester for maintenance purposes.
Good Luck:)
Let me know how it runs!
Sincerely
Dennis moore

Hey Tom,
I believe they are p/n 16535-16 and they use the stock length push rods. Only the shell of the lifter is extended.
Dennis has a good point (obviously); that cam will take some rpm to get the hp!:eek:
Just to add a thought, you may want to watch for reversion with anything other than real good exhaust!
Dave
:)

Dennis,

No doubt about it, I wouldn't go any bigger on the cam.
To be Frank, I wouldn't of gone quite that much myself but My guy assures me that it will make strong useable power.
We figured the compression at about 9 to 1 with the mods that have been done so far.
He has done the same exact combo a number of times and assures me it will idle 0k around 850-900 rpm and make between 550 & 560hp.
This guy has been around for over 30yrs building all kinds of High performance engines, street as well as marine. He has done a couple of engines for me in the past that have worked out very well including the one I am running now. When I questioned the size of the cam he just assured me I would not be dissapointed.
This change is going to be a project for over the winter so I will be sure to post the results in the spring when it's warm enough to go for the first test ride! That is unless I just get impatient and pull the motor, swap cams and try to get another couple of rides in before we get the cold weather ! :D

Hi Dave,

The Lightning headers I have are the restricted water allowing only a small amount of water to mix after the collector and utilizes overboard dumps for the majority of the water. This along with a LSA of 112 and keeping the idle speed set around 900 rpm should pretty much eliminate any reversion problems. The other thing that is not a bad idea is to rev the engine up just a little before shutting down.

I know that the cam I'm installing is going to move the HP band as well as the torque band up & if it wants to run much over 5300 with the prop I have I will just have the prop re-worked by Joel Bronson again.

Tom

Hope your wife liked the book !

hehe