Coludn't find out the compression ratio, I couldn't even find a casting number on the heads, the only number I found was on the block which was 3914660. I have seen some procomp aluminum heads on ebay here in oz but I'm not sure what the quality would be like compared to say the dart heads.
For the carb I was going to go with somthing like a holley 650, the diff ratio is 3.54 and its doubtful the car will see the track, I just want a powerful lumpy idle weekend car.
cheers