how much should i expect to gain on my vertical based on my stats?

[ssbeginnerz]

I'm 5'6 135 lbs and I squat 145 for 5 reps , my SVJ is about 20 inches, since my strength is relatively low can i expect a big increase in my hops as my strength progresses?

[Nick Klemetson]

This has been written about endlessly on this board. Go to the Google machine and search "site:startingstrength.com vertical jump."

Here... this can get you started on reading... Increasing vertical jump?

The short answer to your question is no.