Will these heads work for me?

I am looking to buy a slightly used set of Edelbrock Performer RPM heads on corral. The ad is as follows:

"I have a set of Edelbrock Performer aluminum heads 1:90/1:60 valves. They are pedistal mount and have some minor port and polish work near gasket areas. I had them decked .007" to remove o-ring groves. Heads are still on motor so I don't have pictures yet. Heads have around 2500miles on them and about 250miles since machine work. Thinking about selling to buy some trickflows."

I want to use my stock 1.7 RR and I have a Crane 2031 cam. Will these work for me.

I need your expert guidance! I'm new to this. Car is a 95 cobra...100K, cam, CAI, MAF, and TB. Full Exhaust.
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I bought Edelbrock Performers 190 160 with 1.6 crane RR and TF pushrods with a Trickflow Track heat U/L intake.

How much HP can I expect to increse with this?

Thanks.

Thanks!

How much HP do you think I will gain? What are these heads worth?

I bought different heads

I bought Edelbrock Performers 190 160 with 1.6 crane RR and TF pushrods with a Trickflow Track heat U/L intake.

How much HP can I expect to increse with this?

Thanks.