Hi guys, just had a Edelbrock 1904 serviced with you guys and it has much, much better throttle response than it did before. I just need some help and or advice for an issue. The idle speed is self-adjusting itself during driving. I initially set the idle in park at 800 rpm, and then it goes down to 600 rpm when put into gear. Perfect. However, after driving, sometimes the idle speed will go slightly up and then slightly down on me. Sometimes the idle speed in park or neutral will be 900, sometimes 800 and sometimes 700rpm. There seems to be a 200 rpm range that it readjusts itself to, and I never know where it might end up. Car is '75 camaro with stock 350 small block with an edelbrock aluminum intake. 8.5 compression ratio, original 882 cylinder heads, dish-style pistons and stock .390-.410 lift cam with duration at .050 195-203. Anything that might be causing this, or anything I can do to address this? Thanks!
