Installed the 3.10 upper tonight and to my joy my 594 belt fits it’s just fine and with the adjustable idler pulley from tba I’ll be able to swap to the 2.65 pulley with ease I got lucky and the thermoclocker from tba was also in the package so I installed it so it also gave more clearance for the pulley change a very nice addition ,
I just have to get the race gas out if it and put 93 in so curt can start the flex tune, the dual pump install went smoothly and tested it and all looks great , can’t wait to see how it does in comparison 3.10 on E85 to the 2.65 on e85 I believe both set ups may be able to make 9 second passes the 3.10 is still capable of 800+ rwhp on E85 which is actually a little more then my set up right now , I’m planning on swapping diffs tomorrow, possibly this weekend or next going to holly springs ms and testing it in the 1/8 mile , depending on Curt’s schedule for getting the tuning done