Does anyone have experience jetting a Speed Demon carb? Am replacing a 750 vac/sec with same from Barry Grant and the factory jets are 5 sizes larger than my existing. Hate to start out rich on a new motor but the tech says to do it.

1977 Ford F-100
280,000 miles
Stock on the outside
modified/rebuilt everything

 

from what I've heard about demon carbs, if the technician you are talking to says do it, DO IT! they usually get the jetting really close, most often times right on. try it and see what happens, if not, call him back