went to get some the other day and i wanted to try the 104 octane but they said it was unleaded and he said i should talk to someone first. So i just bought c-12. was wondering if i can mix this pump gas or run straight . I have been running another brand of 110 straight but not sure what kind and i was just wondering if i can go down some in octane. I have 686 je 12:1 piston and hot cam stage 2 from craycraft with a mild port job.
Rudy

 

I run 110 straight with my build and have no problems, I've never mixed with pump gas. I think with 12:1 you can go down to as low as 100 and still be fine. Just try mixing it if thats what you want to do, make sure you dont dilute it to much, start off with a little then add more. I have no experience mixing so I'm not much help, sorry.

 

i have to run half C12 and half 93 in my 11:1 Je
I would run it straight ........JMO

 

Try VP red i had that in my 12:1 cr 686 and it liked it alot,i will be using c12 with the bigger piston i am putting in..