Burvol
Bullbuck
Use a 75' Spencer tape box with a 50' tape and wind the spring tight. Run in the Modified class for tape races.
That's what I alwasys ran until this past December's -5 below killed my tape. It was from circca 1982-84 I believe. Good tape, strong and reliable. I liked a 75 with the guts of a 50, they roll up smooth.