Following the incoming upgrade to v201.0.7 as described here, we must also increase the values two protocol parameters - the max_tx_bytes and max_proposal_code_size.
This is needed so that subsequently, we can upgrade the tx_ibc.wasm on-chain, which will activate the IBC Eureka connection via that transaction. This wasm is quite large, and these protocol parameter value increases are needed in order to put the new large wasm on-chain.
These db changes have been made on Housefire testnet in Props 41 and 44 successfully.