Specifically I am after some better low end torque and better off the line response.)
After spending a ton of $$ on a new transmission and rear end, there will be no changes to these components in the near future.
But you are willing to dump another 1600
2K on cylinder heads that won;t make much difference untill you get
some gear in this car.
Your poor combo decisions are what is holding this car's performance back.
All this car needs is a gear change really. to make it do what you want.
thats much less money than new cylinder heads.
You can lead a horse to water but you cannot make it drink.
3.73's and one of the modern high torque cams I suggested will change the whole nature of this cars performance.
It will accelerate a lot better and The OD gear will be actually usefull.
All at a fraction of the price of new heads.
All the power gain of new heads will be at 4000++ rpm . (top end power)
You will never get ot use that with the gears you got in the car now. You can dump another $2000-$3000 in it
and it will still have snail acceleration untill you got it some gears.