I run 93...always have. When i go racing i'll add some tolulene (i believe its spelled) and boost the octane to around 108.

Dave

 

93 for street and NA. Sunoco 104 for the dope.

 

Where do you get that 104 I am going to need some real soon

 

50/50 mix of 93 and 110 on the street (see compression in sig). When I finally get it to the track it will be 110 only with a 150 shot.

 

I run my 93Z beater on 87 all the time. BTW it went 13.78 with 87 in the tank and then a 13.79 a week later with 94 Sunoco in it, same weather conditions. In the 95 we run 100 for the street and 116 at the track.