Following up some of the discussion in the vacuum pump thread, thought I'd start something for NOS.
In the late 80's-early 90's we ran a Canyon flat in the 8.0 IHBA bracket class (called Super Eliminator back then, think it's Pro E now). We ran a 509 that made [email protected] RPM on the motor. That was good for about 8.30's on the motor. To get to 8.0's we used nitrous. We had NOS install spray bars down the tunnel ram plenum and used jets to adjust for conditions. Typically, we only needed jets nominally set for about 50-60 HP. The jets we used were for 1 cylinder of a Pro Shot Fogger system. Worked great, the boat was a rocket to half track...
Fast forward to now; we are building another Canyon, basically the same as I ran before. Again for the same 8.0 class. We have a bit more motor now (still going together but I'll be pissed if it's not about 925 HP), but I doubt I'll fly the boat like I used to, so I'm thinking I'll need another small shot.
Now the question. For a small nitrous tune up (less than 125 HP) would the spray bar in the plenum still be a good way to go? Plates? Seems even a Sportsman fogger will be a bit much. Also, it looks like NOS got swallowed up by the Mr. Gasket/Holley conglomerate, so who does spray bar installations.
Look forward to the comments.