1980 20 sf power?

[Bushwacker]

Originally Posted by cjm1300

. . . and i am looking for good fuel economy but still speed. Again thanks

Then look at an Optimax or E-Tec that will have similar fuel consumption to a 4 stroke (> 4 mpg) but are much stronger on mid-range torque and power/wt. The Zuke 140 at 421 lbs (before you put 11 pounds of oil in it) is relatively light for a 4-stroke and the only one I'd even consider and would probably get you about 40 mph. However the small block 2.7L V-6 E-Tec at 433 lbs is a much stronger motor. The 150 is actually 165 at the prop with tons of mid-range torque and should give you mid to upper 40's. The 175 & 200 may have a little less mid-range torque, but should have enough top end power to put you over 50 mph.