new carb and intake runs like crap need some advice.

Ok so last night i got my stuff but back together.... new intake (performer),old carb(holley 450 model 4360). it fired right up, but that’s the best part of the story. my friend and I took it for a spin, at first I just wanted to get it up to temp so I was easy into the carb and it ran ok not what I was expecting though. After it warmed up good, I opened up the carb. It fell on its face, sputtered, and then came alive and accelerated really good. did it again and same thing. Like a dead spot in the carb. went to good ol' AutoZone to get a couple fittings and came back out it wouldn’t start very easy, took a couple tries and adjusting the idle air screws to get it running. After that we went to wal-mart for some stuff for the wives. on the way there I really didn't get into the carb because it felt like it was surging. The more gas I would give it the more it would sputter and surge and it had a hard time ramping up the rpm like it was being held back. When we went to leave the wal-mart, I gave it WOT at the red light and it just died. I couldn’t get it started again. Had to push it back up the hill and go get some starting fluid to get it started. After it started it barely ran at all. made it home shut it off, started it back up checked the timing, checked the jets, the air idle screws, al vacuum good, but now I’m stuck. I don’t know what to do now. Please help.

I was thinking vacume advance as well but that is starting to fall out of my field of knowledge. how to you adjust that or verify that it is working? I will have day light when I get home this evening and am trying to get all the info I can before then. I dont have a timing gauge on the block it is on a list of things to buy for the car, but I do have a timeing light though that will do me no good. I marked the distribuiter on 2 spots when I removed it from the block. when I put it back everything was exactly the way it was when I remove it. you mentiond a vacuume gauge to dial every thing in, what and how is that done. remember im a little more than a novis at this, and am learning a lot as I go.

I replaced a 2 bbl intake and carb with a 4bbl intake and 4bbl carb. the distributor was marked on the outside on the shaft as well as marked on the inside. it came out and went in exactly exactly as it came out.

the carb is old as in the early 70 era. but I rebuilt it with a holley refresh kit cleaned it all out, replaced accelerator pump. it was spotless when I put it back together.

ok, I put a 650 holley double pumper on this afternoon and it fixed the issue. seems the car was way lean with the carb I was trying to run. but the double pumper fixed it. the timeing was and is still a little off, but i advanced it enough to get it to Idle right.... but still stumbles a little on accelleration from a dead stop. but run it up into the rpm arround 1500 and punch it.... it starts to walk sideways!!! no joke. Im gong to tune it in next week and will get some video.... its a wicked little car.