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I've been thinking of possibly using e85 instead of 91-93 octane. Would probably stick with a e85 carburetor. Anyone use it good/bad results?

Have a summit racing 750 vac secondary carb on a built 383 with an AFR gauge to monitor changes. I've changed jets and primary power valve to get rid of lean spot around my cruise rpm of 3,700. Currently I think secondaries start opening after 4000rpm and engine pulls to 5,200 with an AFR around...

The new fuel pump did go out. The end of the arm inside by the spring and diaphragm snapped off. Haven't had time to chnage engine mounts yet to see if it makes a difference but will update later

The tank itself has a vent on it and the gas cap is vented also. The filter was also just replaced during the engine swap and is just an inline 30 micron filter. The fuel hoses were changed last year and are 3/8 carbureted hoses.

Dual feed carb, 1st I pulled the needle and seat out. Wasn't dirty or appeared to be sticking. Pulled the dual feed line off to remove screen. Couldn't get it out then it fell into the bottom of boat never to be seen again. I pulled airhorn off carb filled the bowl with gas ran till bowl went...

Distributor vaccum plugged. Has light weight springs from advance kit installed and timing seemed to always return to initial setting. Currently has the distributor I was running on the 350 that just came out sense I knew it worked well. The stinger uses a bronze pilot bushing that slides over...

I checked the backlash and there really isn't any. Just starting to put pressure on prop in either direction and the the flexplate starts to move. Took it out for a quick few mile ride before the rain started and boat seemed to run good with nothing unusual sounding or feeling. Have a little...

I will check that out tonight and try calling stinger later and see if they have any advice or things to check.

Not really sure how to actually measure the backlash but when the gearbox was off I spun it it by and and was very smooth and free, didn't feel like it had any slop before starting to turn. There's maybe around 500hrs on gearbox and oil always come out clean. You are right about the differences...

The stinger does have red and green bushings but the green is larger diameter so can't be installed in wrong location. Local autozone had some of the energy suspension motor mounts in-stock but weren't a direct bolt in. I need the "tall and narrow" energy mounts and they should be a pretty...

I completely built and asembled the engine myself with all forged internals and block bored .040 over so technically 385ci. Had rotating assembly internally balanced. Literally everything on this build is brand new including the neutral balanced flexplate.

Haha😄 you might be onto something. I was thinking of maybe using something like this. Hopefully without having to modify the engine stand. Unless someone has a part number for a better option

Worked on it more tonight. 1st I unbolted the flextplate from the gearbox and reclocked it different. Put all 6 soft drive bushings in slightly loose then started torquing. Bushings looked better and flat, but no difference. Took the prop off and it idled fine at 750-800rpm no unusual vibration...

Just finished up my new 383 stroker build but can't let the motor idle any lower than 900rpm without it vibrating the whole boat and sounds like a deep buzzing, hard to explain. Runs perfect 900-5100 rpm no issues. Pulled perfect running 350 setup out and swapped in the 383. Ran it without the...

Read around and didn't exactly find what I was looking for. Not new to airboats but just picked up my 1st 350 direct drive wood prop boat. The prop was susposedly stored indoors and seems to be in decent shape. Has a couple small dents in the leading edge and the varnish finish is gone in some...

Building a strong 383 stroker, actually 385 because its .040 over, but my block ended up being bad and 3 blocks in a row now had cracks or need a sleeve put in. Considering how much heat builds in the cylinders on airboat is a sleeve a good idea? Will the crack end up coming back through the...

Looked all over and haven't found a good answer yet. I have a stinger 2.38 box on a 350sbc. I know the bell housing is the same but the crank ends are different along with the flexplate. Will it work with a 6.0 ls? What all would be need for the swap, any changes to rigging besides motor mount?

So I recently blew my 355 and just rebuilt another 350 to get me back out until I get my other block machined. Used the cam out of the blown motor and a set of heads I previously ran. Put a brand new radiator of the same size in and used all my other accessories. The blown motor would never run...

16.5x9 aluminum hull sbc 2.38 3 blade 80" whisper tip Boat runs great in the water, very smooth. When sitting on hard dry ground the pivot/rocking point is about center of the hull maybe a hair towards the rear. Starting dry it still wants to push on the nose and ride there. You can see a slight...

I have like a teleflex cable steering on boat (got it this way) and it mounts to the bottom front corner of the rudder on a small tab. Will also add that I have front stick steering that connects to the driver seat stick. I noticed that under idle or partial power I can turn full in either...