Wow good info. It sounds like I need to go a different direction. What model Q-Jet should I look for & where? I may also consider a Holley dbl pumper. I suppose it depends on what a q-jet sets me back.
Back in my high school days, the FIRST thing everyone did was to ditch the stock intakes and Q-jet and install a "high rise" aluminum intake and 600cfm vacuum secondary Holley. The rich kids usually got the 750 vacuum secondary, or 850 "double pumper". About all any of this did was burn everyones eyes who stood behind your car in the high school parking lot after a basketball game. I doubt if any of those carbs and intakes outran the stock stuff, just used a LOT more fuel. Didn't much matter because gas was less than 60 cents a gallon, and you could put those "cool" Holley stickers in your window. I was a dirt poor farm boy, so had to modify my stock parts, or get "junk" Holley carbs and peice them back together. I just happend to drag race my cars back then, and NEVER, EVER, once went faster with a Holley carb than a well tuned factory carb. Of course, you'd have to listen to all the crap from uneducated folks, get rid of the "quadrajunk", "quadrabog", and get a Holley, etc, etc. I don't hear much of that crap these days, it sort of disappeared with the 3/4 cam, "double hump" heads, high volume oil pump, and "double roller timing chain" comments. Matter of fact, folks have pretty much come full circle with this stuff. The best sound Edelbrock clones and Holley carbs make around here, is when they "tink" off the dumpster! Seriously, everything has a place in this hobby. Once you figure out that a q-jet will run right with and even outrun any shiny aftermarket carb out there, it makes little sense to burn up so much fuel for "normal" driving. Not to mention deal with all the leaks, cobbling of fuel lines, chokes, throttle cables, air cleaner assemblies, and vacuum hoses to install a carb that's going to do nothing more than consume more fuel, blacken up your spark plugs, and put more combustion by-products into your lube oil......Cliff
:TU: I have read Cliff's book couple times so far and did some work on couple Q-jets,and one thing i can say.Q-jet rox.I just sniffed my friends Riviera with dual carbs and Owfullhauser highrise intake,carbs are 2 eddys.Oh and he has 3,24 posi rear with 295 tires compared to my 3,07 peg leg with 225 tires:3gears: .Well he was so sure about his shiny stuff that he sold me his q-jet intake with original q-jet.Now i am porting and polishing new stuff for more killing)) Peace Kacper.
Fuel delivery problem indeed! A host of problems! 90 degree outlet with a low af base = pinched line Fuel filter cut open. Full of rust. Fuel psi= 2.50 I have ordered a new tank. That sock must be seriously clogged op. I'll have to evaluate fuel line size next. I love that the car was fast like that.; Looking forward to my speed rerward!
Good news! One of the best, and worst features of this new fuel, is that it does a great job of cleaning out the fuel system! It also soaks up water 1 to 1 by volume with the amount of ethanol in it, so doesn't do well if left in a vented fuel system for long periods of time.....Cliff
I learned that the hard way. I didn't use my 70 GS over this past winter because I was putting my iron heads back on. I had about 3/4 of a tank of 93 E10. Had it in there for 7 months. The engine started instantly, but within a few minutes, the engine was running roughly, and had fouled out all my plugs. They were jet black. The MSD would keep the engine running, but vacuum was down at least 2-3", and the exhaust was smoking and had an acrid smell, like it was running rich. I ended up draining all the gas and replacing it, and my plugs. Some said I was mistaken, and that they stored fuel for long periods of time with no ill effectso No: Not me.
