If you do the math the price for Razors alky kit comes out to about 18 five gallon cans Toluene/xylene and that is not alot for the amount you have to use to get the oct rating up for just a few psi if you are lucky. Back in the day when I ran mixed Toluene frequently it would allow me to run about 2 more psi if I was lucky.
No way you can run the high psi with the mixing that the Alky can offer.
5 gallons of VP methanol set me back 27 bucks and has lasted over 4 months, including over 30 passes in the 1/4 and countless highway races, etc. That would be well over 10 complete fill ups and I just filled the reservoir up with the last of it. This is on my daily driver
Just a perspective of costs vs use vs power extraction.  I promise you...Hands down the alky will be the best mod you have done.
Good luck
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87 GN (3480lbs w/me & 1/2 tank) GT3255E, ESP FMIC, Razors Alky, Turbosaver, TA Headers, THDP w/test, ATR crossflow, TT, 38's, hopped up trans, Pats 10" 3k l/u, QA1r's, UMI Ups (adj) and lows, HR bar, MT DR's  .
2003 G35 Coupe Blk on BLk, JDM Clears, 18's, Prem PKG, Lthr, Bose....wifes car
2005 Harleys : Wide Glide & Duece ...Mucho Bling
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