Still waiting on Gates belt.
Looks to me like I’m maxing out my Cobb 255 pump or right on the edge . A little surprised but looking at this chart, I probably need about 64 gph at 62psi and closer to 70 gph at 64psi. Right at the cross hairs of where it is on the edge for 62psi and definitely below it for 64psi.
What I am seeing is afr rising at the top end and not going down when I add more fuel. I had the same experience when I started off using an outback XT fuel pump but it took me a while to figure out the issue.
I’ll probably just do a drop in 340 for now.
http://www.tanksinc.com/pdf/4_series...flow_chart.pdf