Originally Posted by jwhitehead

wow, i never expected so many responses, Thanks for your help. Everything made sense to me with the exception about pulling out the power valves, why and should the holes be plugged or left open?

Also the fuel log is a BG, it has a built in reg. with multiple feed lines, I use one with a tee to feed the carb and the other has a tee and has a reg feeding the fuel solenoids. And of course the nitrous is fed from the bottle to the nitrous solenoids.
I can adjust the pressure at the log regulators or at the fuel pump. I can turn the pump on and the pressure is @ 10 psi , it doesnt deadhead because it has a return, I did block the return and the guages pegged out.

Now, based on your info, sounds like:


pull power valves and increase jet size
Yes use power valve plugs, jet up 4 sizes to start.

bottle pressure too low
Yes get pressure up to 1000psi and purge down to 950 psi

timing retard not working
Check it

plugs too hot
Not neccesarily, AR3933 should be fine

plug gap too large
26-35 should be fine

maybe change nitrous jets to 28/32??????? help
Deffinatley, and flow the fuel to 6lbs of flowing fuel pressure. If you dont have a flow tool, buy one or build one, never trust an inline gauge.


Did I miss anything?