When Chrysler put 4-bbl mflds onto their 318s, the intake mflds were from 360s ... and they also installed 360 cylinder heads which had the matching larger intake ports for the 360 4bbl intake... they were smart to do that.

Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!