Performance from a mild 350. What is good enough?

[folkenheath]

Aww man I didn't know flipping the plate would reduce total advance, I ended up with a light spring and a heavy one which reduced my advance to 12 degrees, that's close enough and it now runs like a raped ape! I have some go pro to prove my point. Now if I could ge t off my lazy....

How high did you test the advance? Likely you have more advance than you think, it just might not be in until 4500 or something with one heavy spring. Which could be dangerous if it adds another 5 degrees in the upper RPMs while still under load. I usually start out with two light springs, set the timing with the vacuum advance disconnected and the mech all in (about 3k RPM with light springs), then reconnect the vacuum advance. If it pings down low then I limit mechanical or put in heavier springs depending on where. Although when I am tuning for peformance I usually have a converter that doesn't let it ping down low.

 

[elyon]

New Quick Fuel installed.

Now to dial it in.

 

[sreidmx]

I checked it a few times I only get 12 degrees and I have a dial back timing light. I will double check again but it runs well and doesn't ping.

 

[sreidmx]

Beautiful engine bay looks like a beast!

 

[sreidmx]

Replaced my throttle blades with ones that didn't have holes, it allowed it to idle at a normal speed and I think that steady state lean spot is almost gone, worst case I'll have to reduce air bleed one size.