HI all im going to ask a question .id rater not go through the just put a 350 in ! i have a 88 firebird with a tbi lo3 which is as it came out of the factory.i have a pair of vortec heads with large valves in .thay came from a mercrusier 5.0 vorte tbi marine engine i also have the inlet .question will the standard ecu work with thease heads and inlet .the manifolds are being changed and the exhast .will it work or will the ecu need messing with .