quote:Originally posted by Bosswrench:
I Don't mean to sound negative but if you are bored with your life, convert to Webers; that will give you (or a hired tuner) something to do for the forseeable future. In case you've never played with Webers before, your very FIRST purchase should be a good Halon fire extinguisher, as small backfires are the order of the day, and they can/will catch the air cleaners & anything close by on fire.
Your second purchase should be a Weber manual (3 or 4 manuals will be better), because there are 5 jets and two air-bleeds for each cylinder and they all interact to a degree while you are tuning. The venturis and aux-venturis also are changeable and there are no cold-start chokes; Webers use a fuel-richening circuit instead. The cheapest jet sold is about $5 so expect to accumulate quite a collection of part$ you will never use again and which are useless to most other sufferers. In engine fires, the aux-venturis are pot-metal and will melt.
Having spent a solid year getting a set of Webers running well with decent fuel mileage, if I was to contemplate abusing myself again this way, I would use a side-draft intake with Weber-lookalike EFI throttle bodies from TWM. D Quella sells a well-sorted EFI system that can use such throttle bodies or short style downdraft types both of which DO fit under a stock engine screen without cutting the decklid, and once tuned, do not change with every passing cloud in the sky. For $5000.
Did I mention there are Weber-copies available from China via E-Bay and late-night swap meets? They are excellent visual copies except for porosity in the castings plus all the usual far-east-copy probems. Some actually work, too.
Original Italian Weber carburetors were discontinued in the late '80s but one small division in Spain still occasionally makes "original" Weber carbs in a few sizes.
Finally, the 48 IDA and 48DCOEs are really too small for a performance 351C. What's needed IMHO is about 58 IDAs, of which there were exactly 6 sets ever made. But dune buggy off-roaders and sand-drag race shops have such carbs (& larger) available sort-of-reasonably. Not one single part comes from Weber, though. BTW, Jim Inglese sold his CA carb & injection business in 2010 and now runs a new one on the East Coast. The original 'Inglese Inc' is not associated in any way with him but both places sell more-or-less the same things. Good luck.
Fire is over rated. Just don't look down the stacks when you are firing it up. You will burn off your eyebrows, and that makes you look surprised. I hate that.
The kids in the neighborhood love to see me start the car in the dark. It looks a little like a volcanic eruption.
54mm is what you need for the 351c. The bore should match the valve size in this case.
The 58's didn't work very well. That's why there are only 6 sets.
Running "Webers" is a life style. Cool people understand this.
All carbs change with the weather. Racers use the term "good/bad air". That's what they are talking about.
The sensitivity is not from the carbs it results from an individual runner manifold.
The fuel injection does not run much better. There is one of Colorado, Pantera Performance Center Pantera's cars here and to put it frankly, it runs like do-do. Do-do isn't worth 5 grand...to me.
48ida's on an individual runner intake manifold is a racing setup. As such, it comes with all the rights and privileges. For a little use street vehicle they are ok.