while on subject of rons toilets....i got an issue thats been hurting us all last season. heres what i had (motor ended up dieing due to broken crank). 511 bbc. profiler cnc ported heads. sniper intake. 4.100 toilet. tried both O 1/2 billet and standard black pumps. started with .036 nozzles. leaned it back to .033 due to down track "popping". that fixed that. I never could get the motor to hit the converter hard until i put the small nozzles in it but even after nozzles in it, it still had a hesitation at hit. it would rev to 3500-3700 then hesitate for a split second then up to converter solid at 6200 (no chip). The only way i got it to cleanly go up against the converter was to lean it out on the barrel and it was too much to keep the motor temp to maintain and even keep the engine running at idle. Idle egt's would be 800-900 degrees. We backed the barrel off and just lived with it. I believe we were at 19% leak. Another note is we installed a higher pressure idle poppet inline to try get better fuel atomization and flow better. Which seemed to help out quite a bit itself.
We had this toilet throttle body/barrel valve assembly on two different motors and had the same issue. One engine was in a different car and they ordered a new toilet of the same model with the original setup with had (.036 nozzles, std idle pressure, etc. aka out of the box) and it ran perfect.
Anybody have any ideas or have ran into this problem? I'm leaning towards a barrel valve problem.