chip
thanks for all of you that respond. i understand what all of you are doing. the headers are the edelbrock 2 1/4 dia. a lot has changed in the last 12 yrs, wow. this combo at the time was pretty impressive in 1995 when i built it. through a series of unfortunate occurrences, wreck and hurricane, we are just going again. ran the car 1/8 mile only at koc races 4 times. this was more a torqe combo than high rpm. thats why we went with the super mod port, for the torque. shafiroff recommended the 7000 rpm max. good bottom end, lunati pro crank, oliver rods[sorry david] lol and weisco pistons. 3.89 was to help lower the rpm. looks like we ll need a gear and converter change to run wiyh yall big dogs. at rebuild time if everthing is good i ll take it out to the 598.thanks all