Contact Raylar engineering as they are the 8.1 experts
Your ECM will need to be reprogrammed to go non-cat
There is a set of VP manifolds on ebay
https://www.ebay.com/itm/266994409012
since the top is not that large on the 212, I would probably mount them just outboard the pipework. two on port, two on starboard
or just forward the ebox and the forward legs under the front overhang of the hardtop
agree, no way that 4000# dry weight boat is going to do 50 mph with a 5.7 unless the 5.7 is in a truck pulling it down the highway
with the boat being 25-26 years old, time to look into a few things.
have the boat weighed. if you are carrying extra weight such as saturated flotation foam...
going to any drive from your OMC will require a new transom and stringers. at that point, you can go to Mercruiser, Volvo Penta, Ilmore, etc.
current motor location / mounting / etc. is specific to your OMC drive, its intermediate housing, etc.
your motor and drive will weigh in about 750#
your hull without motor is about 700# from what I found.
then add weight of battery, fuel, gear, etc.
the bunks should just pass the transom
there is no shredder that I know of, however i used an old paper cutter and a 6-pack of beer to spend an afternoon making a bucket of cut fibers to make some hairy PB
Agree that the crank driven raw water pump will work better than the mercruiser one. Cant beat the carter universal marine fuel pump, relay, and oil pressure switch for the fuel pump as well.
Will also caution you with the Stainless Marine elbows. if you have any overlap to the cam, the short...