HI DAVE HERE, IAM WRITING BECAUSE I NEED HELP AND ADVICE. I HAVE A 1974 DODGE DART SPORT, I GOT THE ENGINE REBUILT BUT THE ONE MISTAKE I MADE WAS NOT CHANGING THE PISTONS. THE 318 ENGINE HAS THE EDDY 2176 MANIFOLD AND 600 EDDY CARB A COMP CAM 477/480  IAM ALSO RUNNING HEADERS.TO MAKE UP FOR THE STOCK PISTONS I WAS WONDERING IF I CAN RAISE THE COMPRESSION WITH A SET OF 60779 EDDY HEADS. WILL THIS HEADS WORK WELL ON A 318, ALSO CAN I OR SHOULD I UPGRADE THE CARB TO A 650 OR HIGHER. I PLAN TO INSTALL A STREET FIGHTER TORQUE 3000 CONVERTOR AND RUN 410 GEARS. ANY HELP AND ADVICE WILL BE GRATEFUL LATER DAVE  

Won't raise it enough for the aluminum, you'll end up with drivability/gas mileage issues

Stock 318 heads open chamber are 60cc and 67' closed chamber @ 57cc

What are the eddy's?  

hi the eddys 60779 have 63cc with a 171cc intake port and 77cc exhaust port thera also 2.02 and 1.60 thanks for you help  

You need at least 9.1 ,
You could have them milled  

thanks for the help, if i get them milled and get 9.1 will the 600 eddy carb be to small or can i run a 650 or higher with the 2.02 eddy heads? Iam told that these heads flow very well, again thanks for the help. DAVE  

600 Carb will work fine for the cubes unless you have lots of gear and a big cam, of corse then you'd have 10.5+ comp......
And ask them to mill enough to get 9.5 if you can.