I was just going over everything again. I feel that my timing chain may have too much play? I can Rock the crank between 3-4 degrees according to timing tab before my distributor starts to move.
Car starts to act up as soon as a let off for corner entry and attempt to get back on throttle.
That won't cause the symptoms you are describing. Remember the dist has clearance in the gear to cam and the end play (up / down ) in the housing shims, your chain should be fine.
The engine internals don't know if you are in a turn or not.
Your fuel pressure ( 8 lbs, ) is too high for any thing that I would normally build, 5 - 6 lbs is more than enough for what you are doing. Also you have to check the accelerator lever clearance , no more than .015 clearance, plus check to see if there is decent squirt when pumped once.