I have a rebuilt engine (a 289 ford engine) in my 67 correct craft.  I’ve never had it in the water because it’s skipping.  It’s all new rebuild engine, new wires plugs, Petronix ignition system and distributer.  

Troubleshooting steps,

Distributed removed, checked timing, brand new carb, motor craft spark plugs new distributer cap and rotor. Mallory system.  All cylinders are getting a good spark.  Haven’t readjusted the valves to see if one is tight yet.  Looking to see if anyone has any suggestions.  Video attached showing the issue.  Thanks. 

https://youtu.be/AxS_lrJXgPw" rel="nofollow - https://youtu.be/AxS_lrJXgPw

https://youtu.be/AxS_lrJXgPw

Here are half of your answers in the link below Gary  

http://www.correctcraftfan.com/forum/forum_posts.asp?TID=51289&KW=&title=engine-timing" rel="nofollow - link

I guess I don't hear this skip but after watching the video a number of times I got dizzy and fell out of my chair 

I'll also guess that there's a reason Gary asked what the firing order is

New cam or the original cam?

And you never answered the firing order question, so what is it? 

Since that's the early reverse rotation firing order you're using, are you sure your new cam is ground for that firing order or maybe the later firing order of 1 8 4 5 6 2 7 3

If you use the early firing order with the later cam, you'll have an engine that starts and runs on 4 cylinders. You'll have spark to all 8 but only 4 will be firing at the right time.

Early order   1 8 7 3 6 2 4 5

Later cam     1 8 4 5 6 2 7 3

1 8 6 2 will be firing when they should, the other 4 are firing at the wrong times and you have an engine that runs but not too good.

Since this was just rebuilt with a new cam and a RR early firing order cam is about as common as dinosaurs these days, that's why the question was asked

Rotate the way the engine rotates and with a helper holding a finger in #1 plug hole rotate to TDC on #1 (you'll feel air escaping as the piston comes up to TDC on the compression stroke.

With #1 at TDC, in either firing order the next cylinder to fire is #8 so finger over #8 and rotate the engine 90 degrees and you'll have air escaping.

Now put the finger over #4 and repeat the 90 degree turn and if air comes out, you have the later cam and should swap your wires to the later firing order.   1 8 4 5 6 2 7 3

If no air came out, then #7 would be the 3rd cylinder to fire and you'd use the early firing order that you have now.   1 8 7 3 6 2 4 5. You could verify this by rotating backwards about 90 degrees and putting the finger over #7 and rotating forward 90 degrees again to feel air coming from #7.

There's no need to continue through all the cylinders with the finger routine unless you're just having too much fun. 

Let's hope you're smiling when it's all done  

Thank Gary, he got things started in the right direction..........and good looking boat in the video 

The cam issue comes up in the car world fairly often and is always a puzzler. 

8 cylinders sound a lot better than 4