THAT 2.40 60 FOOT TIME IS PRETTY TELLING- I would suggest a set of drag radials. Your 2400 stall converter should be ok, but I bet it is shocking your street tires into big spin. a tenth off that 60 foot time will equate to .14-.16 off your overall et, at least it did on my car. all the other comments are pretty accurate, but until you get some traction, more/better power curves are not going to help. John Osbourne had a couple of his q-jets on here in a for sale thread, if you could score one of them, you would love that!! you have some chassis tuning and engine fine tuning to do, but overall your car has some good parts-just try and be a little patient as you make it all work. It is part of the journey, ya know!! The fun but frustrating part for most :laugh:
:gp: 3800.larry I am sure of the total timing I followed your instructions to the T in your thread you even game me some 1on1 advice my cam is 6 degrees advanced. I dont think my tires are a problem because on those two passes and even when stomp on it at a street light I dont break traction hardley at all maybe a little squeak if anything and then a chirp going into second. Goin to pick-and-pull today can anyone give me some casting numbers and what generally to look for when looking for a quadra jet.Thanks guys russ
I wailed mine at 55--5600 and put over 100 1/4 mile runs on it...Time to step the shift points up ....
Yea my boys at the track and some older guys where like stop bein a p*&%y and get on it.I didnt want to shift high because it overheated on the way up and I dont know why it did.Just a little nervous I suppose but next month its all out.Anyone have any casting numbers or can tell me how I can identify the cmf on a quadrajet.Thanks guys
You want to shift up around 5000 RPM. Modify the governor or shift manually. If the engine is running right, you should have traction problems on street tires, especially with a converter. I respectfully disagree with your dad. Q-jets are awesome carburetors. They are a great street strip carb. Some part numbers to look for are 7028244, 7028245, 7029244, 7029245, 7040244, 7040245, 7041245, 7041544, 7042245, 7042244, 7042944, 7044244, 7044544, 7044546, 7044246, Those are all Buick 350 carburetors.
Get a 180 degree thermastat and a Q jet! Once you tune the idle mixture and secondaries your car will surprise you! Also with that cam I would shift at 5600 rpm.
I do too larry!!! The thing that really pisses me off is that he threw it away!Ok rookie question if I find one of those carbs off of a chevy or old or any other gm brand will it bolt up to my T/A intake?
Sean!! I was waiting for your 2 cents on this thread! lol whats up did you see the videos damn aluminum v-10 roped me and to think the guy was mad!
Those carburetors are all Buick part numbers, but any Rochester Q-jet will bolt right up to your intake. The differences will be in fuel inlet location, and possibly choke hook up. The Olds carbs will have the front fuel inlet like a Buick, the Chevy carbs will be side inlet.
Cool got it.I guess the one thing that is nice about those vidoes is that my car sure does look pretty nice if I do say so myself especially the night pass:kodak: :kodak: .Thanks for all the help guys goin to get a quadrajet right now.:gp:
yep.that cam good to 5000rpm. shift it there, as any more your just making noise. keep on tuning, man
If I read your first post accurately you said you had some mild porting done on the heads. At the very minimum I would run a 750 cfm on that engine. A 650 is way too small and belongs on a Chevy 350. Not your Buick 350 !!! Both engines are very different and the Buick likes a bigger carb where as the Chevy won't benefit. With that carb your car will definately lay down on the upper rpm range negating the benefits of the headwork you've had done. One reason of a few your mph is low. John Biggs. Good luck.
I agree with everyone here that a bigger carb will help, BUT I don't think that is your main problem here. Have run my car with a Holley 670 Street Avenger and it went 90mph. You need to find that missing 10-13 mph. Didn't you have some kind of WOT driving issues recently? Did you get that figured out? If your running out of fuel pressure it will still run but will fall on its face. Get a cheap fuel pressure test gauge setup and take the car for a drive and see whats happening before anything else I would even do that before considering what carb to go with. I've got a pair of quadrajets here I've give you for the cost of shipping then you could get them rebuild how ever you want. got a BBB 800cfm unit and a 750cfm SBB. I here guys talking about shifting at higher rpms, that is not going to help you yet. My car upshifts at 4600-4700 rpm on its own and goes 14.9/15.0 like clockwork. Your car should go about the same as mine due to elevation differences, I'm at Sea level. you can PM if your interested in the carbs.
sorry to hear man. hope you get it tuned right with a nice new carb on it. with a big enough burnout on them street tires you should hook fine, ive never had a problem with mine hooking but mine is all stock ^.^ theres something deff. wrong with your setup somewhere, i raced wensday and even though my car was running like S*** and my best run was a 15.7 i improved my 60' time by alot, down to 2.29 now.
Im with larry you need to find that lost mph. Seems like u had decent power off the line then it died out on you. Shifting low wont help things but probably isnt the issue. I would check ur fuel pressure at mid to high rpm. Your setup should do 14's quite easy. Your also on the right track with the carb, get a qjet and buy the book by cliff ruggles on how to modify it and tune it. this book helped me to understand this carb and how to successfully mondify it: http://www.amazon.com/exec/obidos/ASIN/1932494189/wallaceracing keep us updated. if anyone can get u running well its these guys. they sure did for me!
It seems like there is something wrong across the board......just by the 60ft and the 660 time. The car has 3.73's and a converter right??? That car should be pulling 1.7 short times. The Buick 350 has so much low end grunt....like Danny Wilson said; the only small block engine in the NHRA stocker class you can leave the line at a dead idle and pull the tires a foot in the air. WTF....where is your power???? There is something really wrong here. o No: My dead stock 72 will run 15.70's..:Brow:...I realize that your shifting it at 3800 (which should be at least 5200) but that is horrible. Get that carb ASAP and tune the crap outta that motor. It's easy to cobble some stuff together....just getting the combo right is what's difficult.ray: Have you tried a wide band O2 sensor or taking it to a dyno shop to see what everything is doing. It may be worth the trip just for the time and :dollar: you would save straightening out the combo you have.:3gears::Comp:
