[TASK] Use proper gas limit for each network

[AtelyPham]

Is your feature request related to a problem? Please describe.
Different networks have different gas limits. We should avoid hardcoding it always to the same value.

Describe the solution you'd like
We should have a map from chains to their hardcoded gas limits.

Describe alternatives you've considered
Really just need hardcoded value for each chain rather than 1 hardcoded value for all chains.