'81 Pontiac Parisienne (Catalina)
305 ci, 5.0 l, H code V8, no computer.
4 bbl. Rochester, elec. choke
-- Hard starting --
Spark checks ok.
Choke operating ok, unloader also.
Fuel pump + filter replaced.
Battery charged + starter works fine.
Once eventually running smoothly, runs good,
but struggles to fire + evenly run with cold engine.
Once warmed up, does highway speed + OK.
I suspect carb .. any ideas? Please reply to NG. -Thanks, JS