Percolation? Heat soak? Don't drive during summer??

Johnny Dart said
So the topic is heat soak, and we are talking about ignition components, and fuel return lines. Lol

The best thing that could ever happen to this car would be to bring it back to box stock.

All the add on debauchery is the reason this car doesn't run right.

Johnny Dart said
You do not need a fuel return line. You need to look at your cooling system.

Have you ever checked your radiator ?
Is it clean and flowing properly ?
Do you have the correct water pump for an AC car with the correct AC water pump pulley ?
Do you know the water pump is functioning properly ?
Do you have the correct fan, fan spacing ?
Do you have a fan shroud ?
Timing set properly ? 12-34 for your mild engine.
Water passages in the block flowing properly ?
Thermostat ?..In Vegas, run a 160.
These are things you should be looking at for your car running hot. These cars from the factory, box stock, use to run through the hot deserts at full tilt boogie without a hiccup.

Radiator is brand new cold case radiator, fan and clutch are brand new, transmission cooler is brand new, WP is brand new, spacing is correct between the fan and the rad. Timing is set correctly (was done by a FABO member, he hangs out in the racers forum though.) I cleaned the water passages as much as I could when we did the cam swap and pulled the heads off. I think I have a 180 or 190 thermostat, the 160 might be the way to go.