Odd idle problem at night with '87 Accord LX (carb)

[Tonysal123]

Weird problem, cars starts up and drives fine during the day, but at night idle is so low have to keep foot on accelerator pedal or car dies. After maybe 40 mins or so idle begins to be stable. Car has 87k, new cap, rotor, plugs, and wires. Just passed Cali smog, so timing is good. Problem started happening after putting some Redline ST gas treatment & filling ip with premium fuel. Any advise would be greatly appreciated.

Thanks,
T

[Dr_Snooz]

Probably just crud working its way out of the carb. Be patient and see if the problem goes away. If not, let us know. It could be a carb problem.