Forgot one other

The old style PV from vintage speed are about 1/32 shorter but those 2 threads are enough to bottom it out and leave a gap on the seal. You can mill out the bottom or order the shorter.
Vintage speed also has the PV plugs and bases with blocked idle circuits. I would recommend both as balancing all 3 are enough to make you cry.

It also adds the benefit of under less than 1/2 throttle you run only on the primary and get better gas mileage but have the outers functioning as dumpers when you put your foot in it. (It's slower to load up at tip in but much more street able at low throttle.
It limits some of the power available but way less tinkering once set up.




I want to say I got the spacers at Dashmans. Added some gaskacinch to the mounting surface on the manifold and carb bases. Cause once the weather gets warm 94s love to boil-
I actually put a restrictor plate in the heat riser(drilled a hole in some light sheet steel and slipped it in between the gasket and the manifold) to limit some of that.


Mike Rizzo

1963 F100 "Rudy"

Daniel Island, SC

I have the Vintage Speed set up that came with everything to make a 3x2. It included the primary and secondary rebuild kits with new bases and linkage. I bought it several years ago so I think I have the short pv you mentioned. I'll get some new ones. The manifold gasket I used has the restrictor for the exhaust crossover. I have a Holly pressure regulator and had it set at 2 psi. I'm hoping a good cleaning and new power valves will cure the problem. If not I may just sell the set up and use a single four barrel. I just don't have the free time to spend getting this set up.

Durham Missouri

Had the local guy go through my carbs and didn't really find much. I think know the pv on the primary is leaking. Floats are all fine as is the needle valve and seat. The pv plugs are leaking also so I think with all three leaking it is just dumping fuel in the engine. So bad that the plugs are wet from just cranking it over a few seconds. Looks like new pv and plugs are in order. Anyone have a size they recommend on the pv?

Durham Missouri

For whats it worth I bench test my carbs on the manifold or off.  I use rubbing alcohol to do the testing.  Much easier on the hands. I use a remote  plastic tank with a hose and shut off.  I know its not under pressure but it does test for leaks and if the float needle is working.

Sounds like good advice. I'm definitely going to do it this time. I don't want to have to take them back off.

Durham Missouri

Got it running finally. Had a strange combination of problems. The problem started when MSD sent me the wrong cap for the dizzy. So while we were cranking the engine trying to get it to fire the carbs were leaking and flooding the engine. That problem got the plugs really wet and after the cap was replaced they wouldn't fire. On top of that the used alternator conversion I bought wasn't charging. All the cranking put a strain on the battery and wasn't putting out its full potential. So I replaced the cap,went through the carbs with new pv plugs and a new pv,replaced the needle and seats with roto disc style from Charlie Price,set the floats per his recommendation and hooked up a battery charger and she fire off!

Durham Missouri

Awesome news, enjoy the three deuce.

Mike Rizzo

1963 F100 "Rudy"

Daniel Island, SC