Engine Cutting Out! What to check?

Ok so here's a different problem I have. The car won't even start at all. I pulled the distributor to make sure the pertronix unit will fit, put the original back in, changed the jets back down, and now it doesn't even try to kick on. Just cranks and cranks. I only pumped it like I normally do to get fuel to it but didn't since the first cranking. Checked the distributor and it appears to be in the correct position. I've turned it every which way and it won't kick on at all. I smell fuel but it's not even trying to start. What else to check now?