With the timing staggered as is our lot with 270 degree engines, is the fuel mix velocity the same to each cylinder? Seems that a 360 engine would naturally be easier to regulate a same same dose of velocity, fuel and air. Have you attached your set up to a Bonnie or a Thrux. yet? I totally agree with Ken, you need a set of headers with bungs, so you can attach a on board, ride along sensor, the dyno would only be needed to authenticate actual output, once you had the set up dialed in.
