450cfm (1.08) vs 575cfm (1.21) according to http://www.cjoffroad.com/writeup.asp?WU_ID=16&noAdd=1. In the Jeep world, the 1.21 is commonly found to be too much for 6's and stock 304's. I'm sorry, but I don't pay close enough attention to what everyone is driving. What's your particular application? -Spro -----Original Message----- From: amc-list-bounces@xxxxxxxxxxxx [mailto:amc-list-bounces@xxxxxxxxxxxx] On Behalf Of Armand Eshleman Sent: Friday, June 22, 2007 7:51 PM To: AMC/Rambler owners, drivers and fans. Subject: Re: [Amc-list] gas mileage I have a two barrel from a 70 360 engine. What is the difference between the 70 two barrel on a 304 and a two barrel on a 70 360 engine?? Just jets and power valve?? Thanks, Armand _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list