Originally Posted by pjmach1
That Hurt.. What's wrong w/the Quick Fuel? Will Not run an Edelbrock..But thats another can of worms to open.
Oh, sorry. You misunderstood me here. The Quick Fuel is a GREAT carb. I was saying that I'd like to have one myself, so, why don't you send me yours?
You say your compression ratio is lower than stock. So, what is it? Perhaps I missed it in one of your posts?
What rickgto is saying is that a mild cam will create high compression at lower RPMs, which can lead to pinging, while a more aggressive cam won't develop high compression until the engine winds up a bit. This is referred to as dynamic compression, vs. static compression.
EDIT: OK, I see you listed "9.5-10:1" for compression. This should run fine on pump gas. I suspect Bartl is correct about your vaccuum advance or mechanical advance. What type of distributor are you running? It may need a re-curve.