(remember hearing about a poll or opinion on the old forum but???)

I am sure I could tune it out but it only lasts about 2 min, as soon as the temp gage moves about 1/4 it is gone and runs fine. It's a stick so I have gotten used to it

I just returned from Crown Victoria Convention and got someware between 14 and 15 mpg crusing at 65mph with some runs to 70. Rear gears are 3.40something

Edelbrock: starts like crap, need to pump the hell out of it and turn car over several times before starting (hard on starters wires cylinoids and doesn't look good in front of people when hard starting) although once running doesn't perform too bad good and tourquey but poor fuel economy. Every edelbrock on anything ever run acted the same way.

Holley: Best starting, let car sit 6 months and just touch the key and the car is running in first revolution of cranking over. excellent all around performance but they are sensitive and need regular maintenance and tuning. moderate economy.

4100: Starts almost as good as the holley, sometimes have to give one or two pumps and car is running within one or two revolutions of cranking over. Smoothest operation, best economy, Best fuel atomization of any carb ever built, least maintenance, can't leak. The number one choice for all around carb.

BG Race demon: Coming later at a dragstrip near you.

Still adjusting and tuning.

I am pleasantly surprised at the top end with the Autolite 1.12, but of course dissapointed at the throttle response & low end.  

I belive the throttle response on the tiny rochester 4G will be impressive once I get the linkage road worthy to test.  It makes me want to re-visit the Q-Jet, this time with a better test specimine, armed with my box of jets & meetering rods & hangers.

In street trim the y seems to love the velocity of the small venturi, but the funny ports seem to like the flow capcity of a larger carb... Maybe it will be a best of both worlds??

Or am I just bench racing again???? 

Before I change carbs, I'm going to pull my Holley Megascoop air cleaner and try something else.  I was told by Rob on here that they don't work very well and I should replace it with a velocity stack.  I've also read that this carb might be a little big???

- John

Your right I did say that. I am running a Holley 4150 (600CFM) and it runs great. It might be oversized since it is sitting on a stock motor. I'm not sure what jets are in it, but they must be small for it does not run rich. As for the B&M Mega scoop, I was quite surprised as to how restrictive the filter element was. It looks like a K&N filter. Even after washing it, it didn't seem to make much difference. I got better performance with a regular 10" open element Fram, paper filter? I have now finished building my ram air box to mate with my scoop, and will be rebuilding my spare carb this winter and playing with the jetting.

Rob

On the flip side, I am currently making a solid attempt to bore the secondary throttle bores on my 1.08 to allow for the larger butterflies from the 1.12.  The venturi is already a shade larger from my earlier re-working a few years ago.  My hope is to have my own version of a spreadbore 4100 that will be somewhere around 550 or so cfm, the bulk of that on the secondary side. We'll se if I can bore a round hole since I don't exactly have a machine shop here!

I could end up dissapointed & calling up BG for a 525 road demon jr!

One short

One stout

I'm a little teapot-short and stout

Some great info can be found on this site & the host seems to be well versed in autolites & all applications including y's.

http://www.network54.com/Forum/88781/

Out of the box ran ok, rich, but ok. 

Some rod changes, & trial & error on a few springs, & it has so much better response than I ever could get with the 4100's I used I am actually surprised! The only bad thing is now a brake line has decided to burst, so so much for my 240.00 carb!!

TC - Austin, TX

It came with a 70x52 meetering rods, & the book says 100 main jets.  (haven't had to pull the top to see the jets) It also came with the orange springs for the power pistons.

I ended up using 73x47 rods with the same orange springs. 

Like I said before, the throttle response is what I was most impressed with.  The torque is much improved over anything I had ever been able to come up with before.  By that I mean it is an off idle torque that carries through into the power circuit. 

Fyi, I have a 301, with ported c1te heads with 1.78 intakes, e-4 isky cam, 1.6 roller rockers.