Edelbrock Performer RPM

[swinger340]

I live in Maine. I run a chokeless HP series Holley. My car is far from a daily driver. I went from an LD to the RPM air gap in a mild 340. No real noticeable difference. But there again if it is below 35-40 I am not driving it anyways because of the no choke and it being so cold blooded.

 

[roccodart440]

I live in Maine. I run a chokeless HP series Holley. My car is far from a daily driver. I went from an LD to the RPM air gap in a mild 340. No real noticeable difference. But there again if it is below 35-40 I am not driving it anyways because of the no choke and it being so cold blooded.

Same exact situation here. Anything under 30's I'm not on the road. My GT will never see snow or salt.

The day I had the AF meter in it it was between 70 and 80 degrees. So in summer 90's+ I'm sure it's a touch rich, in the early spring and winter in the 30's and 40's.. a touch lean. I

I feather the throttle for maybe 60 seconds and then it will idle on it's own. Maybe let it run another minute, maybe not and drive away.

 

[Coffee&Cars]

It's a great manifold. If you have street gears keep the divider. If you have 3:91:1 or better have the center divider milled down to 1/2 inch tall. You lose a little bottom end, but in the mid and high range it will have better distrubition and make more power. 600 to 750cfm carb and a 1/2 inch spacer. I have run this combo to the high 11's.

 

[rebelcaptain]

I would leave the LD340 on, it is a great manifold.

As far as cold winter starts, my guess this sits in a garage, and is a pretty pampered car, since he bought it new 44 years ago and it only has 50K miles.

Please post a picture of your car.

OK. Here are some pics