I might add some nitrous to the trusty old 501 this winter.... I run in on E85 which of course requires bigger jets (bigger carb in general) then race gas...but it's about 1/3 the price of race gas which is why I use it... The engine will be going back in the Comet (2600 lbs.) and will continue it's part time life on the track and on the street...

Question is when (and if) I add a shot of nitrous to it, how much bigger should I jet the fuel side of the nitrous injectors? Carb is an 850, jetted at 78 and 83.... I would think that using E85 instead of gas I might be needing a bigger shot of E85 when using the nitrous because of the lower efficiency of the fuel????? Or am I just creating a problem where there isn't one????