New Road Demon Jr 525 carb

new MSD ignition

engine bored .030 over

G heads

Blue Thunder intake

Reds headers

dual exhaust with Hushpower glasspacks

Mummert 265 cam (224 deg @ .050, 110 degree separation)

After completion engine would pull strongly at higher throttle settings but had the following running issues.

Idle was rich(would make your eyes water reguardless of mixture adjustment), idle mix out 1/4 to 1/2 turn. Could turn them all the way in and engine would still run.

Idle was inconsistant

Engine had a surge at all speeds when throttle was just off idle

Engine had a stumble just off idle

I tried numerous adjustments and even a call to tech support without any luck improving the running.

Finnally came up wit the following which has cured 99 percent of the issues ( still have a barely perceptable hesitation that I think furthe idle mix will cure).

I drilled the center of the base plate and installed a .050 jet to allow additional air into the engine at idle. This cleaned up the rich idle and allowed the mix to be set 1 1/2 turns out.

Reset the float levels to 2/3 of the way up the window.

Reset the timing from 12 to 15 degrees initial.

Re-jetted from .58 to .62 (this at 4000' elevation). I have to thank Tim for his suggestions on the board for this.

Secondary plate set full closed the 1/4 turn open with the secondary adjusting screw.

Idle speed set to 800 RPM out of gear, about 1/2 turn open from full closed.

Engine now pulls strongly at all throttle settings, idle is consistant hot and cold and no more watering eyes!! Mike

1956 Fairlane Victoria (ORREO)

Overlooking Beautiful Rimrock AZ