Sascha, have you had this issue for a while or has it been recent? Is it affected by temperature?
My '77 with no carb cooling fan and OEM fuel pump has been fine, hot or cold, high and low. Sometimes it'll get a little heat soak going and take slightly longer to start up, but it always does. I do have a fully electronic ignition from a '79, don't know if that makes a difference. Also OEM plug wires.
I'd like to know more about your symptoms. Is it cold starts or hot starts that are causing you problems?
Rising Sun Bio
2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering,
no more Sanden OBA
1FZ-FE factory lockers +
Safari intercooled turbo, CDL switch, cup holder, Metric TLC leather, heated seats, JDM switches, PUMA OBA.
Warn M12000 waiting for a bumper.
Limited TRD 2UZ-FE SOLD