[boostedfour]

I've searched all through the forums, but still not 100% clear on a few things. Thanks in advance for any advice.

2016 435 GC - FBO + Pure Turbos Inlet - Stock Turbo - Stage 2+ 93 MHD

I plan on switch to E30 Map later today and I've read E30 is the most you should run on EWG so good on that part.

My plan was to run tank to half or little less then half, add 4 gallons E85 and top off with 93 V-Power. Based on calculations, that should put me roughly 29% mix.

My main concern is if it's completely necessary to drain tank to near empty, or will I be fine as long as I'm certain I can get the right amount of E85 in there?

Will be going BMS WMI soon, but looking for some gains in the meantime.