Yes it’s full flex fuel from 91 octane to e85to race fuel so you add whatever fuel your gonna use and the m150 ecu handles the adjustment automatically
Yea it’s the 168mm the 13 is almost finished it’s driving around braking the engine in before strapping it on the dyno , the 21 I got the motec and just got the 3.8 blower after a 20 week wait so I’m gonna be installing that and getting everything going in that project