Why 1978 Chevy Nova L6 4.1 250 will not start?

[popparollo]

Have rebuilt distributor, replaced spark plugs and wires, and have replaced all vacuum lines to carburetor according to diagram, turned NO. 1 piston to TDC. Need Help!!
getting gas to carb, spark to plugs, 153624 firing order is correct, new plugs and wires are installed

 

[sellallday247]

Break it down into parts,
Check spark.
Then commpression,
then gas,
See if its getting gas,

Whats it doing when it doesnt start
Email me for more information sellallday247@yahoo.com