Recent content by Heimedw

How much vacuum do your motors make? I took a reading from the pcv hose and it was about 4-5 but bouncing all over between 0-5. If I brought the rpms up it would go to about ten but still jump all around. The car runs rich at idle and I think it’s because the base timing is at 14 degrees and...

I might have 2000km on the motor

Yes exactly.

Another question. The Holley xp carbs don’t have vacuum ports on the plate. Is it possible to get a correct vacuum reading from the Pcv hose?

Cylinder 8 the first two was cylinder 2

How does this look to you guys?

I just thought of a question not sure if this would matter. I’m running the Holley 850 Xp but I’m running a open gasket with the duel plane intake? It does have the notch center. Could this cause my issue?

I may break down and buy a duel a/f gauge to see what it’s running at in all areas of the throttle curve and load range.

If it was the intake if I spray intake cleaner around the outside and under the intake if it’s a leak I should be able to hear a change in idle correct?

The intake was new in box

10.5 : 1

I also had the intake off and reinstalled with new gaskets.

Click on the picture it will get bigger

400/512. Edelbrock performer rpm, trick flow 240, crane hydraulic roller 252/258 @ .50, 2 1/8 Tti headers, Holley 850 Xp, hs roller rockers.

I did a 512ci stroker a few years ago from a 400 Chrysler. I had the engine Dyno and it was running a bit leaner on the right side over the left. Just wondering if this is a normal trait for a duel plane intake on bb mopar because of different intake runner length? Being on a dyno this was...