I have been told to always run 87 octane unless the manufacture recommends 91 .
91 with torco accelerator mix
Tatum Black Widow
402 stroker twin turbo
Albins sequential
1200hp @ 18psi
I run the cheap stuff
'It's easier to fool people than to convince them that they have been fooled.'
Mark Twain
I have always used regular gas but now use premium in the turbo .
This is funny topic, I really lov that guys spend 30 G on a stupid sxs and then worry about gas LMAO
Riley Ranch still sucks
I use 92 octane non ethanol in all our SxSs and all small engines...blower, generator, weedeater, pressure washer, etc.....not because of the octane, but because it is clear and easier on fuel system components.