720 power problem

[Captain Crazy]

5/15/12
I put new Head Gasket on, Drove about 10 miles, ran really good, Now it idles fine , but when I accelerate it bogs down to where I pull over to the side of the road. Then I tac it up to about 4000 rpm and let out the clutch slowly while keeping her tac'ed up to get her home. Once home, seems to somewhat fix itself. I changed 8' of 1/4 vacuum line. It runs a little better, but, it still bogs down here and there, off and on

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5/16/12
I changed the EGR valve gasket today, Tinkered with it running off and on for an hour. Checked timing,12 BTDC, checked plug cap, it drove fine to the post office, about a 2 mile ride. I was there 15 mins. When I left I could barely get it home. It would idle fine, but when I would try and move it with the power down it would lag like hell like it was lacking gas, only could get it going 5 miles a hr. I seen a tow truck driver and asked him for advice, he said the head might be acting up after it warms up. It ran fine when i took it apart to changed the head gasket due to water loss.
ANY HELP ON THIS WOULD BE AWESOME.

[XavierBK]

Fuel supply?

[Captain Crazy]

I got it fixed, it had a blocked jet on the Carb