My old boss had a mild 454 (cam and work to stock heads) on a 15x8 alumitec, he turned a 80'" 3 blade K with a CH3 2:1 prop was set at 2. He had to run it 38-4000 to keep it on plane. Had 1/2 poly heavy rigging and cage live wells. Always seemed to struggle. Superwides are designed to turn slow...

Looks similar to a Bill Roberts box to me.

Maybe PCM runs a different thermostat. I thought stock LSA thermostat was 190 degrees. Codes are for adaptive learn and closed loop. Some systems will not run in closed loop without the motor being at the correct temp. Could be sensor or voltage or ground to sensor. Also if it is running learn it wi...

I run an old Garmin CSX76 handheld, it is waterproof and floats and ram make a nice mount. It is color but the screen is small. Now that my one good eye is going bad I have to stop and put on my glasses sometimes to see the detail. It has to be over 10 years old and still works great. I be looking f...

When I was a kid we used to go out between the islands at cedar key on the lowest tide and walk around the flats in ankle deep water.

But that was over 40 years ago, damn I'm getting old.

I have seen a few out just north of yankeetown but was very murky.

1

Look back at crowhaters post he did a BBC budget build for a buddy of his and posted info on the build.

Go to the aircraft section of the forum the very 1st item is a link to aircraft manuals.

I run my boat in the saltwater most of the time. I went with 304 SS and I polish it with a softscrub pad, lol. For the 1st few years I kept it polished both hull and rigging. Not so much now, I send to much time in the salt. I do keep it very clean but the whole polishing thing is way to much work. ...

Deano, I was the same about the fuel pressure gauge, set it and forget about it. But having it on the motor is being able to better determine the problem on the water before you screw something up. Just like I run an extra manual oil pressure gauge screwed directly into the block, no manual oil line...

Are the secondary's working properly or fuel pump issue, could be going lean at higher rpm, would get hot as well.

Do you run a fuel pressure gauge?

Just a thought

One thing to look at is if you have an LS2 out of a TBSS it should have the 411 injectors which are 36lbs at 58psi good for around 450hp at 80% duty cycle. Also a few GM setups run at 40 psi not 58 and the TBSS had several different injectors depending on the year. Just a few thing I would verify. D...

Are your sensor bung holes in the collector?

With a cam and head work, and at around 10.6:1 my ls2 carbed is around 400hp. With a 2.68 and 79.5" 3 bld R set at 2.5 motor turns 5500.

Sounds like something is wrong in your tune.

Tune it self
Fuel Pressure
Injectors to match Estimated Hp
Correct length push rods
???

A lot of good info
My 2 cent

Be careful with the mag. If you don't now how they work ,learn.

If the mag is not grounded, then it is hot and rotating the prop can have severe consequences.

Have you checked the float drop not float level? If the needle and seat are to far down then the float will never drop far enough to allow the correct amount fuel in. I had it happen when my fuel pressure regulator went bad and spiked the pressure to my carb.

Just a possibility

Can't you tune it for WOT and use a piece of Wire in the IFR ( old school trick) to lean it out at idle but will be a little fat at cruise. Depending on the metering plate you can also drill and tap IFR and emulsion circuit for 6/32 brass blanks and drill them to the size you need. Just some thoughts

No sir I do not. It was just a thought.

Also the AFR sensors do not like leaded fuel.

Have you ever verified TDC is reading correctly on the pacemaker?

Can not say about the quality or ride but there are a lot of big name boat and yacht manufactures using vacuum infusion.

I would certainly take a look a Woods and Waters (Paul Jackson ) Havik Hull. He build a great light boat. I have also seen that Outlaw is doing vacuum infusion.

Can never go wrong with a Marty Bray or Jimmy White.

What he said^ I have seen all kinds of bad stuff in out of the box carbs. Get the manual and make sure every thing is correctly set-up ie float. Also look up tuning an Edlebrock. It is very basic and easy to tune. I have put 3 of them on buddies airboats (against my recommendation) and all required ...

I do concrete and masonry as well but we work in gainesville.

There is a guy named David smith, he is on the facebook SA and I know he does great concrete work.
FYI it is a concrete pool deck. Cement is an ingredient in concrete.

For efi the original computer will work but you need something like HP tuners ( just 1 of several oem tuning softwares) to change the parameters. I helped build a few boats for friends all with junkyard motors. Most have had over 100k on them when pulled. 1st 3 were done with a carb and MSD boxes. 2...