Speedmaster Small block porting tips and results Part 1

Most drag strips require water. Car manufacturers use propylene glycol in their aluminum engines. A combination cast and alloy headed engine should be good with Ethylene glycol.
Thanks, i agree on the choices. I've never had anyone ask what I had for coolant. 30 yrs of going to the strip.... Always look for the overflow, though. I think they just know a street car will have a 50/50 blend.