Back in the day there was a '68 Chevelle SS in the next town with a nasty little 331 (.030" over 327), 4 speed with 5.13 gears. It ran honest high 11 quarter miles and could lift the front wheels on L70-15 bias ply street tires with the headers capped. It had a full interior and the body was 100% stock. Streetable? BARELY but nobody made fun of his "little" 327!