The last two days I've barely been able to get my stock 78 started. It takes about five long cranks but once started it sputters five seconds and then runs as normal as always. What freaked me out this last time was after the first crank a bunch of white smoke billowed out of my grill area. That has never happened before. I have a K&N cold air filter so I'm thinking the smoke came from there but don't know why. I have a 1 1/2 year old fuel pump, fairly new rotor and dist cap and the NGK plugs and wires only have about 4,000 miles on them. Any ideas why it would now be so hard to start but runs fine? Btw, cold weather isn't a factor as I live in LA.