87- 4.3- tbi

Hi People, Help Please,, I have a 87 G.M.C Rally van, shortbox window van , it was in great shape when i bought it 10 yrs ago, so i invested some
money into her, new engine 4.3 v6 used the original ctr manifold and rebuilt the throttle body injection carb. replaced pretty much everything on the engine, been doin the body work and interior for the last 2 yrs it was runnig rough when i pulled it out of the garage and cleaned the plugs and egr valve. was running good, not great good, did more work on the interior and put back in the garage, next day i couldnt get it to start ,,,,it wants too but it acts like its flooding,, im lost, do i do the carb and gas filter again ??? please help ,,thx Dano
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