Kevin Green
Well Known Member
Well the trusty wide bands are installed and am ready for some super tuning. As soon as the weather straightens out, it will be " leaner is meaner "
My 409 build
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Kevin Green
Well Known Member
I have used this unit on my other cars and love it ! Money well spent in my opinion !
I have this exact setup but haven't installed it yet. How about some help? Pictures of where you put the oxygen probes and such. Please.Well the trusty wide bands are installed and am ready for some super tuning. As soon as the weather straightens out, it will be " leaner is meaner "
I'll be using an LM1 wideband on mine too. I don't have any experience with them yet, but I think we determined in another thread that it is best NOT to use them to tune the idle circuits. Best to do that with a vacuum gauge and use the wideband for part-throttle cruising and W.O.T.
I'm thinking that my engine will benefit from a jetting change. Remember I don't want to ET better than 11.49. It sure would be cool to run up against that number on a regular basis though.
Kevin Green
Well Known Member
I will have to get some pics tomorrow for ya but I put them probably 3" ahead of the collector flange in the header.
Kevin Green
Well Known Member
I used both on a 496 with 1050 dominator and the wide bands was right with the vacuum gauge.
That's good news.
RE- tuning a Holley 4500: Back when I had a dominator I never could get the idle cleaned up good enough for it to run right until the engine reached 120+ degrees. It would often gas foul a set of plugs before it got warmed up. Once it was up to temp, it would burn nice and clean.......track MPH suggested that jetting was correct.
I sold it for $350 and bought a used HP950 for the same amount. The car ran the same ET/MPH with the 950 carb, but the plug fouling while cold was now fixed. Maybe if it had been a newer model with screw-in air bleeds I could have done more with it. ???
Kevin Green
Well Known Member
I had to work with mine but it's hard to say. If I had to do it all over again I would put a 950 on it...I think the throttle would be snappier.
Kevin Green
Well Known Member
Air cleaner revision #4...got some more work to do but I think I can live with this one. I still think that an oval filter like on the old 413's would look better but I just cant find a way to make it work without cutting up the hood !
The filters look great!!! Am I seeing a small block fan shroud???
Looks great Kevin.......
Those look great. Those filtered tops sure help in a situation like this.
The filtered top is a great idea. Looks awesome
Kevin Green
Well Known Member
Yep ! I found a 409 shroud but the guy was holding it up for ransom so I just cut down the small block shroud !
Kevin Green
Well Known Member
Yes they do ! Finally something that looks acceptable and is functional...I think ?