High Mileage Collection on Instagram: "Now... it's time for an optispark distributor 😅 Took the supercharged C4 on its first outing of 2025 and had a blast for all of 20 minutes. It was a hot day in Texas and coolant temps were around 215° (that may sound high but C4 cooling fans don't switch on until 217°). Ripped it just a bit and next thing I know there's a huge cloud of white smoke in my rear view. I glance at the cooling gauge...230°. I kill the engine and coast to a neighborhood. Take a f

Chevrolet LT1 Engine Info - Heads of the Class