mystery 454? NEED HELP

snowdan wrote: so went to remove starter and opened up the battery compartment to find the neg cable melted to the post? what could cause this? the only thing i recently messed with was the wires going to the coil after i had it tested maybe hooked up wrong? it was a new battery. this has been how it has gone with this boat.

Dan,
I was replying this morning when the power went out and then I had to run to work!

As mentioned, the battery should be OK but I sure would check the cable and it's terminal. Under the electric tape (never a good sign!!) it looks like the terminal was poorly crimped and maybe not even crimped with the proper crimping tool. Take the tape off and see. Check for corrosion as well. Lot's of cranking and the poor termination sure would cause a "melt down". Besides crimping the lugs on, I always like to sweat solder. It fills in the gaps the crimping leaves behind. As a finishing touch, I will use adhesive lined heat shrink tubing over the lug barrel and several inches of cable. It forms a complete seal.

The coil wire had nothing to do with the battery terminal. They would have burnt up real quick long before the battery cable heated up.

BTW, both my 54 and 64 have wing nuts on the battery. 65 combined boating years without a single problem using them!!!!

baitkiller wrote: . Loose the wing nuts.

John,
Please be specific. What is wrong with the wing nuts?

8122pbrainard wrote: ... Besides crimping the lugs on, I always like to sweat solder. It fills in the gaps the crimping leaves behind...

Pete, was is sweat solder? Is that something different from using an electric soldering iron?

Good heads! Closed chamber large ovol port gets the compression up into good range and will flow good through rpm range.You maybe got lucky and someone knew what they were doing. If it has flat top piston should be in low to mid 9's for compression. So many cam choices for lefty motor would be nice to know approximate cam lift. Should be a runner

snowdan wrote: cadunkle wrote: baitkiller wrote: Yes you are correct. I would wager somebody here has a carb for you. I am not a Holly guy so no help here on that. Other than being original I cannot understand the obsession with such a finicky carburetor. I threw the leaky POS in the dumpster and bolted on an AFB with a wedge and haven't looked back. I am sure there must be a benefit somewhere, I just have not discovered it personally. I have a list 9022 Holley 800 CFM 4150 marine double pumper for sale. Rebuilt last season and ran maybe 10 hours. New billet base plate replaced the worn out original. No choke on it currently but I may have the choke parts if you want to run a choke. Got frustrated with a problem I couldn't figure out and bought a new one to replace it. Turns out I had a vacuum leak under the intake and this carb is fine. I'd like $450 for it. If interested let me know, would be a good fit for a 454... I had it on my PCM 454. pics of carb? would this bolt right on?

You can see pics here in the for sale listing I posted (my boat is a Supra so I offered it there first): Holley 9022 800 CFM 4150 double pumper

This will bolt on right in place of what you have and you can use the fuel rail you already have to feed it as your existing carb is also a 4150.

Have you looked here?

750CFM would be my choice

It's funny what comes up when you do some searching!!

Thanks everyone for the help she fired tonight it was 11 at night and the neighbor lady gave me some grief and I had to kill it but fired right up awesome as soon as I figure out how to post a video I will.