Is it possible that Torco Accelerator might work with pump gas, in order to make your race fuel a bit cheaper, but still provide enuff octane ?
https://torcousa.com/products/accelerator
It's available in 6 quart cases & 5 gal pails.
Don't know the cheapest current source, for total shipped price. Might depend on whether anybody still ships this without charging tax.
https://www.superchargedmotorsports....RoCP20QAvD_BwE
https://www.summitracing.com/parts/tic-f500010t
https://www.amazon.com/-/es/Torco-F5...M53AAK93BT23CT
https://autoplicity.com/1500494-torc...xoC_foQAvD_BwE