Quad carb setup information help
Rat Bastid, I've gotta get some additional information such as verify my timing and my vacuum at idle which I hope to do tomorrow. But reading your post about idle air bleed I wanna make sure I but the correct parts. Here's an address to some on eBay I can purchase if there correct. (
(10 Pk) Blank Drill To Size Holley Carburetor 10-32 UNF Air Bleed Screw In Style | eBay )
Also what drill bits will I need and should I look into a pin kit to be able to check sizing.
Thanks for your help as this will be all new to me and I'm sure ill have a ton more Questions.
Rod
What carb do you have? If the bleeds are changeable from the factory those work nice. If your carb had press in bleeds from the factory you’re better off getting some 6-32, 8-32 and 10-32 brass set screws from McMaster-Carr and using them.
For what you are doing you will need an .011-.060 pin gauge set. It would be better if you had one that went up to .125 or so, but you can get around that.
Then you need those frustrating drill bit that go from some really small size like .014 (maybe smaller, I’d have to go out and look at mine) up to .039 or something like that. You can get that little kit at any good hardware store.
And 2 GOOD pin vises. When you start drilling brass it’s a PITA to keep changing drill bits out. At least to me it is.
Then you can get a pretty decent number drill kit from Harbor Freight.
And then you need 6-32, 8-32 and 10-32 taps.
Then it’s a pretty simple task to pin everything, write it down and the make your tuning decisions. Then you drill your brass and screw it back together.
BTW, on TR stuff you can use an 8-32 set screw for the T-slot restrictors. On single 4 stuff you’ll need to use a 10-32 set screw because you you may need the restricter to be big enough that it gets into the hex on an 8-32 screw. Unless you are using E85 or methanol fuel. Then that’s a whole nuther situation.
On a TR you can squeeze the T-slots down pretty good on gas and really clean up the cruise.
Don’t forget to pin the power valve channel restricters too and make them changeable if they aren’t already.