Just bought an unbelievably nice 65 Barracuda with a slant 6 and 3 on the tree. Drove it home 4 hours in 100+ degree heat and had zero issues. Love the slant 6 and this car. Been around cars my whole life (3 generations of mechanics) even though I am a computer nerd, I grew up in my grandfathers and fathers autoshops from the time I could walk until I graduated HS. Going to tinker and do little things with this car, but mostly drive and enjoy it.