engine quest E/Q cylinder heads

Yep. Bigger port sizes (stock intake port 153 cc's,E/Q intake 170 cc's) tighter cc chamber size( stock 62-64 cc,E/Q advertised @ 58 cc's ,airflow @ .500 Stock 210-215 cfm/EQ 230-235 cfm. (1.92/162 stock valve sizes) LX guy( member here ) got a 70's Dart to run 11:70's@ 116,basic stock EQ heads. Check out Magnumswap.com,for more info on his combo. If you want a bolt on set with bigger valves & better airflow potential, contact MRL/ 0u812( Brian-IMM engines)/RAMM/or IQ52 here. All have extensive experience with these heads.