Well I pulled my 340 out and started taking it apart to see, what is in it and what parts may need to be replaced or updated. it's a dated 71 block, 70 x heads. I don't have a caliper measure yet but at least a .040 overbore, flat top pistons with valve reliefs, sig erson 1h cam .472 lift 228 duration, hooker long tubes, and a B@M 3000 stall. with the 6 pack setup. I am thinking about rebuilding the top end to a voodoo cam, lifters pushrods and some rocker arms. But I am more curious about a setup like this if I send the carbs off to be tuned correctly should this motivate my challenger well
