I bought an 87 k15 with a decent running 350 2 bolt main but after seeing some janky wiring and oil/trans leaks I decided to do a frame off. The block was already bored .030 over and showed some light pitting in the 7th cylinder. The block is a 010 casting and my machine shop assured me that it was a good candidate for .060 over (shop has a great rep ran by a couple of old school hotrodders). I have an Edelbrock AVS2 650 carb, Edelbrock intake, comp cams xtreme energy 4x4 cam kit with springs and lifters, 250-258 tappet lift, .432-.453 valve lift, 111 lobe separation, long tube headers and a 7qt oil pan. I’m rebuilding a th400 to put behind it and will be running 4.11 or 4.56 gears. Unfortunately I’ll be running 882 heads because they’re in pretty good shape to save some cash. Any idea what kind of TQ/HP numbers I should see out of this setup? Also any ideas on what stall speed I should run for a new torque converter? This will be used primarily for street, no strip. Thanks for your time.