Quote Originally Posted by techinspector1
I was surfing around for you and came across this build. It looks like the intake runners are a little large, but it made good power and wasn't that far off the mark with max torque at 4,500.
http://www.popularhotrodding.com/eng...engine_blocks/
Richard is correct.
I have seen very few 305's that need more than a 165 cc port volume.