I drove my Astre up the road for the first time since the new engine. For the most part it ran great... now it idles good, takes off good, etc. BUT... when I get to roughly 10-15 mph, the engine starts to stumble, surge, hesistate, whatever you wanna call it. I'm just guessing the speed since I don't have a speedo yet, but it was before the trans could even shift to second. It's kinda of annoying, because that's all that's left before I can drive it. What's wierd is that it does it when I'm just accelerating normally, meaning when I stomp on it, it runs and runs great! At first I thought the accelerator pump, but I replaced that with a brand new one out of another carb.
Oh, and the specs... it has a 355 with 10:1 compression, Dart Pro1 aluminum heads, RPM intake, XE268H cam, TH350 with shift kit, and a Holley 750 with a Proform main body.
Any ideas? Thanks in advance.