Help my 73 Mach 1 is really sick!

[supeg]

Specs

1973 Mustang Mach 1
351C 4V
Bored .30 over
4 Speed
Comp High Energy Cam (32-225-4)
Duration @ 0.006" 280 / 280 @ 0.050" 230 / 230 Lift .53 / .53 Lobe Separation 110
Edelbrock Torker 351 Intake
(Custom? How do i find out what brand?)Long Tube Headers
Holly 750 Double Pumper Carb
MSD Electronic Ignition
2 1/2 Inch Dual Exaust (Custom no bends, should I use a midpipe?)
Dual Flowmaster 40's mufflers
9 Inch Posi rear end
4.11 Gears

Went to take my lovely friend out for a ride yesterday and she sounded like she was dying! I checked everything I could think of, sounds like the timing is somehow off or its not getting enough gas. I checked the carb and its settings are fine. I was going to take it out around the streets to see how she runs but then I noticed that there was oil leaking from a intake screw!

www3.telus.net/public/supeg93/oil1.jpg
www3.telus.net/public/supeg93/oil2.jpg

It is the screw closest to where I put the screwdriver. Now I am scared to even take it out. Anyone know what could be the problem? This oil comming from intake screw really scared me!

Here is a video of the sound.

www3.telus.net/public/supeg93/problems.avi

Like I said she sounds very sick and never used to sound like that at idle.

Please help!

[orlowted]

I had a post a few weeks back where I was leaking oil from one of the bolts holding down the aluminum intake manifold. I thought it was a real problem, but when I took it to the mechanic, he said that older ford cast blocks do that a lot and that it is not a big deal. He said that for my car after inspecting it (your situation might be different). He had me put some pipe wrap in the bolt threads and some green rtv sealant and put it back in. Sure enough - it has not leaked since. He said the Blue RTV does not hold up well under the heat.

Is it possible that you moved the distributor and set the timing out of sync. Since you don't have points - that rules one other thing out. Fuel Filter - if clogged - could be starving fuel flow.