Numbers

[sidelock]

What kind of numbers should I expect to get from a 1975, 18 SF with a 98 Yamaha C115 two stroke & a Power Tip Ballistic 13.5" x 17P. prop. At the present time, I only have a tach., fuel gauge and a volt meter hooked up and have'nt installed any electronics yet since I'm still undecided on what unit to get. My w.o.t. is 5500 rpm as per Yamaha manual.
I primarily fly fish and use the boat on the great lakes & inland lakes as well as coastal near shore fishing for Albies, striped bass & bluefish and a yearly jaunt to South FL. for Tarpon/flats fishing etc.
Any input as well as advice on electronics would be appreciated.