This is what you need to do.
Your 86es has the 9.0:1 Compression 2.7 flat top piston M20 in it which is a torque monster, well with the correct fuel and air mixture!
Here is a picture of what you need to do, take everything e and old out of your engine compartment, like this.
And find an i parts car and put all the i parts on your 2.7.
Now you will have an eta with i acceleration and e torque with a 6300 rev limit and enough torque to out pull an i any day.
Your best build would be to find an 88 super eta shortblock and put all the i parts including the i head on then you would have a killer M20 using all stock parts. ha I love it.