Thumbnail Filmstrip of Dual Nozzle for Tunnel Ram for Turbo- Pro-Chargers & Large Unblown engines Images
When Unblown ( Naturally Aspirated) Engines are 632 cu in or more the nozzles need to be split into two sets.
With Turbo and ProCharged Engines this kit takes care of the too rich at bottom end trying to get enough fuel at top end.
The Idle situation with one large nozzle is very rich, and can contaminate the oil easily, and prevent heat build in the combustion chamber. Trying to satisfy top end HP with a large enough nozzle becomes almost impossible when cu in exceed 650 . We split the fuel delivery into two nozzles, typically using 80% of the fuel initially and 20% at a specific fuel pressure, so idle can be clean.
This kit should be all you need to accomplish this.
Refer to our area size chart in mechanical injection area of our technical tab for how to calculate how to split it up - 80% primary 20 % secondary.
Dual Nozzle , twin Nozzles , 7122AY-long 7122-AY