Timing set at 33 degrees locked out?

What is the base timing?

It almost sounds like a vacuum leak.

As for it being a carb issue or a timing issue, the best answer I can give you is .....Yes.

GT

Check fuel pressure?

Ford cobra jet Manifold . I will re torque and retry . Thanks

I retorqued all the manifold bolts . And it still dies when it drops below 1500 rpm . Sounds like it runs out of fuel i will try the carb cleaner at the base but its sort of hard to hear the engine rev up if i have to keep it at 2000 to keep her on. My engine builder put the intake on so he will be fixing it monday

I sprayed ether over the manifold edges and the idle rose substantially. So either the manifold was not torqued right , or he used the wrong gasket . I have a cobra jet intake and typical 460 gaskets dont work . The one with sheet metal covering the valley . But now it has me wondering , I had to get new heads because mine were cracked . My old ones were port matched to the cobra manifold . These werent . I wonder if that will give me a sealing problem .What do you guys think ?? Hope not i am out of money and leaving for Parker Thursday . Btw the boat will be at the engine builders bright and early tomorrow am .

I sprayed ether over the manifold edges and the idle rose substantially. So either the manifold was not torqued right , or he used the wrong gasket . I have a cobra jet intake and typical 460 gaskets dont work . The one with sheet metal covering the valley . But now it has me wondering , I had to get new heads because mine were cracked . My old ones were port matched to the cobra manifold . These werent . I wonder if that will give me a sealing problem .What do you guys think ?? Hope not i am out of money and leaving for Parker Thursday . Btw the boat will be at the engine builders bright and early tomorrow am .

Just a thought, but if any substantial material was removed in decking the block, the intake will need machining to match as well. Dave would be the one to ask on that though.

Could also be that the intake was machined correctly for your old heads if they, and/or the deck, were resurfaced before, same issue. Fel-Pro makes a marine intake gasket kit that I use, and I also cut up the tray from the old gaskets to still use it. Just no end seals, RTV above and below the pan.

Ray

MY WIFE HATES ME RIGHT NOW AND THE ENGINE BUILDER!!!!!!!!!!!!!

I took the boat back to the engine builder today and we came to the conclusion he used a non cobra jet gasket on a cobra jet manifold . He gladly replaced the gasket and the motor than idled . I was happy , he was  happy so I decided to go to the lake . I wanted to test the motor before i hauled it all 300 miles to Parker thursday. That is where my story turns sad . The boat ran like crap on the water . It was missing down low and would not even clear out on top .Like it was running on 3 cylinders after idle  It is the same carb that i was using sucessfully with my last motor . And then  nursing it back in the oil pressure dropped from 70 to 25 at 1500 rpm . I dont know if that is just the motor breaking in or throwing in the towel . The water temp stayed between 180 and 200 . I have the timing at btdc 33 degrees like the cam guide suggested . I checked compression when i got home 170 all around . The spark plugs are turning a chocolate brown My engine builder wants me to pull the motor for him to inspect .......Any ideas why it would run like crap . Here is the last two things i am unsure of .

I purchased a new holley 80gph fuel pump . When I went to unhook the fuel line gas squirted out everywhere like it was over pressurized . Should I have a regulator ??


When i pulled the carb which is a older holley single pumper i think 660 or 750 there was alot of gas in the intake if the carb is
flooding the motor wouldnt the plugs be wet and would it miss ?

My last heads were port matched dv3e to the cobra jet intake . These new heads arent . Since they wont flow as well would i have to rejet accordingly .....enough to make it run this poorly

Thanks alot everyone for your knowledge . If i cant get this going i will be the loser at the sandbar with the rental boat on it for my bachelor party next weekend lol ....

Running Harman marine logs, and was idleing most of the time . It usually drops to 150 when i am moving .

Sounds to me like you might have a stuck needle and seat and the carb is flooding.

Better check your oil to see if is contaminated with fuel, if it is drain and relpace . Besure to check fuel pressure 6-7 lbs is all you need. If the pan is loaded it would account for the oil drop however better to check to see if ithere is damage to the engine.

what does fuel in oil look like ? And what do you mean by my pan loaded ?

Smell it! If there is gas in it you will know.