> If the purolator is not a very good one, do you have any recommendations on
> a better one? I'd like to try and use the mechanical pump, guess I better
> look to my fuel lines (I assume the tanks being cleaned does not necessarily
> mean that my lines are clean). Ever since this change I've been getting a
> wretched smell of gas in the cab that I cannot track down, wonder if it is
> the carbs overflowing (spent some time today tightening the tanks
> connections). I'ver got a baffle between the carbs and manifold that would
> help prevent combustion, but it would sure volatalize quickly, maybe this is
> the smell. Any other suggestions on tracking this one down?
The purilator regulator is not a bad one, just not the best you can buy. Holley makes one that sells in the $40 range. From there, you can spend higher and higher degrees of coin for deminishing performance/coin returns.
If we are talking about strombergs here... If the bowls are over flowing, the main jet will allow fuel to go straight into the carb via the jet/needle passage. If the problem is really bad, there is a passage at the aircleaner flange that will liberally pee fuel into the air cleaner. This passage is a full inch above
the jet, so this would seem to be a major overage. Actully sounds rather unlikely to get that high, but its exactly where mine spewed from.
With an electric pump, you will make peak fuel pressure with the engine not running, so if you pop the air cleaners off both carbs, stick your finger in and lift the venturi pistons, you may see a trickle of fuel around the needle and jet. This says that the bowl is overflowing.
Although I have never used them, it is my understanding that Crose-jet needle and seats offer better fuel shutoff than do the conventional needle and seat assemblies. This would allow the crose-jet to run at higher pressures while not impacting fuel bowl level too much.
Hope this helps.
Jarrid