Need help guys... Sorry I keep asking!

[gavinmosher]

Okay guys my 84 with a 454 out of an RV was running well before i did the intake and carb swap,

It will now fire up but will not stay at an idle without me pressing the gas pretty hard,

I thought it was a vaccume leak so i bought new gaskets again and reinstalled the intake with new gaskets and cleaned it even better than before and reassembled

i even pulled the valve cover to make sure when i had it on what i believed to be "TDC" so i could make sure both valves were closed when the number one cylinder came to the top

NOW after all the reinstallation I tried firing her up and she started after pumping the gas, but as soon as i let off kaput she died again.

I stuck a timing light on it and it seemed way off time it was a good 2 inches to the left of the timing mark and got further away from the timing mark as I gave it some throttle

Can ANYONE give me any advice as to what i am doing wrong here?