My '59 with a stock 235 setup except for Fenton dual exhaust headers will NOT do a hot start. No combination of throttle and/or choke knob settings will get it to fire, but the situation improves with time. The shorter the time since I shut it off, the worse the problem. Then yesterday, while stuck in construction traffic, it stumbled and almost died. Only blipping the throttle kept it going.
The fuel line is a new replacement, routed in the factory configuration. And temps here in western OR have been mid-60's.
Whaddaya think? Does that sound like vapor lock to you? And if so, what are available fixes? I thought about slitting some rubber line lengthwise and putting it over the fuel line, but would that provide enough insulation to make a difference? I doubt there's room for header insulation. Maybe the best fix is to bend/re-route the fuel line over the top of the valve cover so it doesn't run along the left side back to the carb.
Or is there another common cause for this problem I'm missing??
