- Feb 7, 2003
I use one of these. Works well.One word for a regulator Aeromotive, best regulator out there.
IMHO, I think regulators are important regardless of the mechanical pump being of the low psi variety or not. A steady pressure in my opinion is better for the needle and seat, plus who is watching their fuel psi while revving it to the moon while working to keep the car under control. I've always tried to run a regulator with a carb.
I switched from a 650 AVS,How
how do you like the AVS2?
I switched from a 650 AVS,
The problem with my old 650AVS was a off idle stumble that no matter what, you had to use more timing AND A fatter idle mixture...according to my wideband to help cover up the stumble. Different acc pumps. pumps shots, ect did nothing here. And I truly believe Edelbrock knows the issue, that's why they revised the style of booster they used for the AVS 2. Anyway, the fatter idle mixture along with as much initial timing you dared to give it left you with a nice exhaust stink at a stoplight and about a 12 or 13 to 1 ratio at idle. So basically, an incomplete burn.
The new 650AVS 2 has a different style of booster that not only eliminated that flat spot stumble off idle, but as a result lets you turn those idle mixture screws in to achieve ...on mine..14.6-15.5 to 1 at idle, hard to get a rock steady idle reading with my cam. But now with no hesitation when I let out the clutch and step on it. No more headache from the stink after you drive the car for more than 10 miles in traffic. I'm amazed how all sorts of people on all different forums think that the idle stink is just part of driving a 70's car.
In fact now, it feels real close, seat of the pants to a FI set up.
I bought the AVS 2 based on real world owner reviews of application,and trying to separate them from just opinions
Jeff Smith was right about this one: From 3:50 to 7:00 he explains on the video