i got a 350 and i dont know if i should bore it out or not, looking at like 72 cc heads, was planning on doin all forged internals and doin like a 250 shot, dished pistons etc etc...the lower the compression the better correct? gonna get the timing retard adjuster thing that msd has and was looking at the edelbrock progressive controller....would direct port be needed just for a 250 shot?