Hi Alan, yes new cars popping up, and some cars gets some upgrades. Yes the shows are really good, actually we are invited to one of the best tracks. Hope to make it there with the Flathead dragster, waiting to get it machined. ;/ After last year, read record short, the block cracked in nine places
I don't know if the spool is the same for the stack and blower injector.
Bruce.
The Crower spool has a larger diameter and a narrower slot then Hilborn with a .400" slot. But according to my calculations, they should have approx the same arial. The problem is that the engine don't get enough fuel, even opening the BV for more leakdown will not help. A .50 pill@4psi on the main byfass help some, but still to lean. The 580 cid has eight X36 Enderle nozzles and we use a Enderle 81A-1 fuel pump cam mounted. The system pressure at idle is approx. 20 psi witch i think is way to much, and thinking that the spool is the restrictor. As a note, we don't have an Idle bypass.
The owner has made some spool blanks this week, so we will try to make a new spool with a little wider slot and maybe a little more aggressiv ramp. The butterflies are 2.9 " in diameter, so we need a lot of fuel when they open up.
If we knew the excact spool data, it would have been a little easier to tune it, but I do belive we will get it running. Hope
Kjell