I have a Spectra 20 460 with RPM manifold, edelbrock 750, logs, DUI HEI. Went out the other day, fired it up at the ramp, didn't notice anything wrong. Putted out, put it on plane, ran that way for about 1/4 mile, hammered it for a few seconds, brought it down to idle for a no wake zone and a faint ticking can be heard. Threw out the anchor and started searching. Checked oil level and it was just above add line. Put in a quart with no change in the noise. Pulled alt belt/ still there, pulled valve covers, all rockers are oiled and snug and lifters are tight, not able to push them in. Drove the boat back to the ramp, on plane, for about a mile and it seemed louder. Next day did some more troubleshooting on the trailer. Removed bell housing plate and could hear the noise but not coming from this area. Pulled the spark plugs with no sign of damage there. It sounds like it's coming from behind the timing cover, maybe?
 Has anyone had something like the cam, gears or distributor make noises or maybe it's a bearing? Oil psi looks good though. 

I have a DOOE-9425-D intake manifold. My engine now has the performer and edelbrock 750 carb set up. I'm thinking of going with the cast iron intake and a rebuilt Quadrajet. Just wondering if anyone has ever tried this on a jet boat. My boat is a 20 Spectra and Berk jc. Pretty much stock except I'll have a new DUI HEI distributor this coming season. I used to run a Q-jet on my 70 GTO years ago and I loved it. Being able to dial in the secondary air valves was a nice feature.
The carb in the pics is one I had laying around. Maybe It'll work?

 I have a 460 with a Mallory magnetic distributor that's got about 3 short seasons on it. The roll pin broke recently and the gear is not a press fit now. Talking with a mechanic friend of mine, he says that the 20w50 valvoline racing oil in my jet boat never gets thin enough because of the lake temperature, causing constant stress to the gear and roll pin. He is not a marine or jet boat mechanic.
 I just ordered a Davis Unified HEI ( DUI ) because most of what I read seems that Mallory pins break more frequently or Mallory owners are just talking about this problem more than others.
 I have a bunch of the Valvoline Racing 20w50 because it is high in zinc for my non roller cam.
 Should I be concerned about the oil weight with my new distributor?

white Dino Wheel

Looking for a 460, bigger, trap door style with a rear sump pick up, windage tray and studs.
  Thanks, Lenny.

  I'm getting ready to put on a Harmin Marine engine mount and the size of these 5/16 timing cover bolts seem very twinkie. I measured a depth of between 5/8 and 11/16 of threads and about 3 1/2 overall length under the head of the bolt. So I'm looking at getting some 4 inch length stainless socket cap and cutting each one down to get max threads with a washer and lock washer.

  What seems messed up is the holes through the motor plate and the timing cover have what I consider a lot of play. It almost looks like it could call for a special shouldered bolt to take out the extra movement.

  Just wondering what everyone else has been using on their BBF front mounts?

  What about studs with a beefier thread at the cover? Do they make them?

  And what would be a good torque spec on the motor plate?

Here's what I have for my Ford 460 motor mount, And the next pic is something that looks like a better solution. I know they're for a BBC, but I sort of remember hearing someone say they can be slightly modified or something to work with a BBF.

Has anyone done this or know of a similar mount like this to replace my old, nasty, rusty, piece of junk?

  What's up ?

a boo