I will try to adjust the cowl.

I am certain I measured and marked the firewall correctly (the anal retentive engineer comes out in me). I rechecked that I centered the DA on the cross hairs. So I'm certain the engine is mounted as per instructions.

On the FG site, there is a 77 page thread on the 260. It takes a long time to go through, but I noticed that the majority of the front end pictures looked like mine does.