thanks for the answers!
So my original engine has got a cam, which is stardard in GM marine engine?
-> Indmar EFI computer is programmed for this.
Rossterman, you meant in comparison to vortech car engine cam is different in marine engine?
JimN, yes I just need basic replacement, no customization.
If so, the GM base marine engine will do ok? Even the replacement has got a roller cam,
as the original engine has got flat tappet cam.
Ok, flat tappet cam is maybe an option, but roller cam would be better I understand; E.g. a bit more power.
The valve timings seem to be different with different cams, that is why I am wondering if the original EFI computer would do ok with roller cam?
I do not know EFI working principles yet so closely, and I am not able to tune EFI computer, and don't want to buy a new one.
PS190 1995 5.7 l EFI TBI 1:1 13x13 4-blade prop. Barefoot boom, wakeboard boom & fatsack. UK made trailer