Quote:
Originally Posted by Tom Kirkham
Do you still have the metering blocks?
Can you post some pics?
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I'm pretty sure the metering blocks are there. I'll gather up the parts and take a few photos.......
About the only good thing I can say is I like the teflon like coating they coat the carb with inside and out and the butterflies have a black teflon like non stick coating, other than that, the carb was junk.......
I bought a new 750 vac.sec. carb and ran it on my engine for a month or so and it ran well, got about 20 mpg on the highway.Then I decided I wanted more and read about Davinci in some magazines and he's not that far from me, so I contacted him about going thru my carb. Filled out a very extensive spec sheet on my engine and car and what I used the car for and what I was looking for in the carb and sent it all to him, got the carb back and bolted it on and it ran SUPER SUPER RICH from the word go and had a terrible off idle bog. If you stood behind the car (65 Fastback, 351-W) the fumes would burn your eyes and choke you within seconds.....Fuel mileage went down to 10 mpg on the highway from 20 mpg, not good!!!!!!! Sent it back twice and the results were about the same as the first time.... In the meantime I bought a remanufactered Holley 600 from Auto Zone to be able to use my car and it never ran better.......
I tested the car with both carbs on the street and at a 1/4 dragstrip and that's when I put the 750 on the shelf..........BTW: is a 3310 model, 750 vac. sec. carb.......
I now run a 20+ year old, third hand, Holley 600 DP a buddy gave me that he was throwing away (said it always ran too rich, it was jetted about 8 sizes too big) and I rebuilt it myself. Car idles like my wifes car and gets 23 mpg on the interstate cruising at 75 mph and runs 12.90's in the 1/4,down from 13.30s as before!!!!!!!!!!!!!!!
I bought a couple of Holley rebuild books and studied them and got a few old Holleys to practise on and now do all my own carb work, nothing fancy, just standard rebuilds with top shelf stuff and I'm happy with the results, so far.......
David
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