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Pre production cars often had slightly different badging than production models. I remember the picture of a 1969 Mopar 340 barracuda, which ended up being the 'cuda 340.
Have a buddy with a Duster and a 340. It uses the Mopar electronic ignition kit. The vacuum advance has failed. Is there a replacement part that is specific for those distributors.
I can change a pump shot rate and volume in 2 minutes. It doesn’t define the carb. You can drive all day and never use the rear pump.
And if it is tuned properly, you’re still targeting the ideal air to fuel ratio when using the pump. I.e giving the motor only what it needs. If you want to...
and pulling in fresh air through the breather.......the air must come from somewhere
engines with more than acceptable blowby will push more pressure than the pcv can keep up with......and there would be evident "puffing" out of the breather, even the dipstick tube.
Same as every port fuel injected engine on the road except they shoot straight into the cylinder.
The pump shots ( yes primary as well, the one youre shooting in all the time) are designed to break up on the boosters and atomize for the correct AF ratio. The carb designers saw this internet...
My new 1969 SuperBee came with 4-piston front disc brakes. It had 14" rims with optional 14" wheeldiscs, seen on a lot of '69 Coronets. My guess is that the Coronet is an early pre-production photo-op car. The 15" rims and wheel discs could mean it has a Hemi in it.
You may be right, I'm going by Dave Wise. I'm trusting you guys to steer me in the right direction. In his manuals, he indicates that 68 - 70 the part #s are the same for all BB Mopar's. Normally he does include earlier models in his information if they are identical.
Uhh, the accelerator pumps do.
Normally I take your comments as gospel but a strong pump shot is not going to lead to long cylinder wall life for guys that drive 100% on the street.
the pcv valve meters the amount of air that gets pulled through the engine and into the intake......it's a constant vacuum leak, the carb is jetted to compensate