GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
My former mechanic replaced my 1979 Mercruiser 228 (305 GM, 4bbl) with a 305cu in Grooms Marine rebuild. The Mercruiser 228 with an Alpha 1 Drive and 14x19 stainless prop on my 20' Mark Twain did the following:
2600rpm = 26MPH
3000rpm = 30MPH
4400rmp = 48MPH WOT Trimmed
The Grooms engine with...