I have a 1992 seville
I recently stripped the engine down, replaced all gaskets and seals and put it back together but now im having trouble starting it.
when i try to start it, it turns over for a second, sputters, then stalls
if i move the timing up, it revs to 3500 rpm and stays there.. even with the butterfly valves closed... i can slowly push on the accelerator and it will redline but if i push it hard the revs die down and then it stalls....

after each attempt, i have to turn the key back and forth so it primes and then it will do the same thing if i try to start it again

any ideas?