Thinking of a cam change

[82 GT]

I wouldn't exactly call my heads "poor". They might not be AFR's but there is a lot of money wrapped up in them...porting, polishing. oversized valves...etc.
Anyhow, it almost HAS to be the converter. There's still some fine tuning that needs to be done on the carb. but not enough that's going to gain me 3 tenths.
I figure if my 60' times are only in the 1.9 range with slicks and gears then it's either the carb or converter.....but then again, I was getting the same 60' times with the carter 625 and performer intake.....so it's back to the converter again.