Dave,
Maintaining the CA emissions, and having a real barn burner is an oxymoron
I put the flowmasters and the flow cats on mine. It is almost respectable, but with only 190 hp stock, well it's ok. I put an ADS Super Chip in it???? and It may pull a little more around 3-3500 rpm, I have a 4 speed.
I am between a rock and a hard spot, I want to keep it as original as possible, yet not be eaten at the light by a Honda.. Change rearends? different gears will help at the low end, but then lose performance at highway speeds...
If you find the magic bullet, and can do it for $1K let me know too. I guess I am more interested in the style of the 80; 81 & 82 than the neck breaking launch.. I've put all new suspension under it and will run Highway 49 with anyone...
Good Luck
BudD