Can't get 'er started.

[bobcostas]

Hey dudes.
I'm just stumped. I can't get my truck started after i made all my modifications. I got a 4-barrel holley and a 4-barrel manifold put on my sbc400, and now she wont start. I probably have the timing so far out of whack, but also it might be the ebay carburetor.

i have the spark plug cables in the right firing order, with the one plug on the drivers side of the HEI coil guy and then clockwise 1-8-6-4...

any tips? anything i probably forgot. Its getting spark and fuel.

thanks guys.