Quote:
Originally Posted by Bushwacker
I'd follow up with him on the riser issue though, as too short of a riser can kill an engine in a hurry!
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Riser height for a Volvo Penta may not be the same as for a Mercruiser. Exhaust elbow internal geometry has an effect on how high they need to be. I have 3" extensions on my 350 Mag MPI and the top of the elbow is right where it's supposed to be.
Dave