Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Could also be crap in the fuel tank, stopping up the sock as you drive. Once the car sits for a while, some of the crap will fall off the sock, and then you can start the whole process all over again on the next drive. Another thing that could cause this is a fuel tank that is not venting properly. Try your next long drive with the filler cap loose, and see if that helps anything.
____________________________________ Joel Adams C3VR Lifetime Member #56 My Link
insulate the fuel line from the pump up to the carb,put a thicker insulating gasket between the carb and intake manifold.in the old days we would put insulation and wooden clothes pins on the fuel line,the clothes pins worked as a heat sink,wasn't purty but it worked.something like an asbestos wrap would work,but not asbestos,one of the other guys in here,prolly has another idea.you just gotta keep the high heat off the fuel line,an that engine compartment gets pretty hot
Vette(s): 1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!
Good idea from Tommy. He has had quite a few problems in the past but is learning about his 81 !!
Vette(s): 70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe
All of the above are good things to check. The only additional idea I have is the possibility of the ignition module failing as it heat soaks. It seems less likely than the fuel ideas above, but worth a check if those don't work.
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