The tuners were top notch , the parts on the cars couldnt be any better if I did it my self , both of these guys have been running this combo sence july 2010 and October 2010 flawlessly one blew in July 2011 and thr other Feb 2011
They e85 they bought this last time had lower octane and both the guys stated they could hear spark knock just befor the engines went , I have built over 30 engines because of e85 none of them I have tuned because I will not tune them or build engines if I know they are using e85 , E85 IS NOT A SAFE FUEL FOR PERFORMANCE
e85 IS NOT OCTANE REGULATED and does not have a regulated octane because the octane has to be changed slightly because of winter fuel and starting issues , uncle sam does not regulate the octane of e85 and you can find that FACT on the internet
Tom