Re: jimbo B
Sorry to say, good chance it is a chebby. Is the distributor in the front of the engine or the rear. 888's (ford) were in the front, the chebby in the rear where you can hardly get to it.

The 898 chebby was a POS 305 cid, a mere overweight shadow of it's somewhat more viable 350 counterpart.
As for the prop, you should top out at about 4800 rpm. If you are in good tune and cannot reach it, get a prop with a lower pitch. If you exceed it, get one with a higher pitch.
That 898 setup probably came with a 15 1/4" x 21 pitch. I think the OD had a 1.65 (or so) to 1 ratio.
I think the hp of the 898 was....198 hp! The 188 hp Ford would run circles around it and certainly outlast it....but then, that is just my personal preference.
