My son has an 86GT 5 speed car. Last year it developed an ecu issue, and after bringing home 3 different scanners that all failed to talk to it, we went old school. One high dollar, new age regulator, and a full Edelbrock intake, 600 carb and breather, and a vac advance stand alone distributor, and she runs out real nice. He is wanting to put a cam in, with a nice thump, but not anything requiring new heads, or seriously compromising drivability. I know a rough idle means poor bottom end and fuel economy, but it’s more or less his toy. He doesn’t drag it, just enjoys it around town. Any suggestions on a cam???