I did all the recomeded tune up stuff- from caps and rotors,fluids all around- timing,valves etc- checked all hoses replaced some- now after the valves and timing it has been getting worse gas miliage and seems to occasionally just flat out starve- when i put the peddel down it dies out? Happened today towards the end of a tank of fuel and again tonight with a full tank- new fuel filter and all??? any ideas????

