The LLY is easily upgraded and the Allison is virtually maxed from the factory engine power. Options:
1. just flash about 70hp from a programmer and live within limits.
2. Spend serious bucks upgrading the maxed out tranny before installing something such as the Edge/Attitude combo since levels 4 and 5 will fry the tranny with repeated slips and defuels.
Shouldn't the transmission be the starting point? No one seems to address this and just seem content to buy a kit to monitor slippage and defuel as necessary. Thoughts? I'm starting to upgrade and want to be bullet proof.