340 stroker cam

I ran the 20-740-9 (Comp XR286R) for many years in my old 410 engine. The car ran great (about 30% street, 70% strip). That engine was 10.8:1 compression on gas most of its life, but I switched to e85 in its last few years. It ran high 10.7's on a typical summer day (10.57 was its best). This was with ported Edelbrocks (from Ryan at Shadydell) that flowed 293@ 0.600.

Edit: I was using Comp 939 springs, set up at 1.85" (a lot less spring than what you currently have).