Charlie, I hope that I did not. Have not changed the timing 12 Degrees at the distributor when 3X2 set up was on the motor. No pop back on that set up. The crankshaft advance was spot on with ISKY specs. If I had a manual choke I would try to change the air mixture with the choke blade to see what happens. I don't know what I can do yet with the carb pump arm to get more fuel if that's the problem? In this hot weather I am having fuel boil out causing flooding on restart. I have a fiber spacer to put between carb and intake but installed yet.

56 VIC  Gene Stoehr Sr.

Could you have misunderstood ignition advance for cam advance?


Lawrenceville, GA

Haven't done the plug check. Just removed a 3X2 set up that I finally got tired of tweaking so would have to change plugs for a better look.

56 VIC  Gene Stoehr Sr.

Isky called for 15 1/2 degrees advance was 1/2 under and I added 2 degrees to put the cam at 17. Per degree wheel.

56 VIC  Gene Stoehr Sr.

Is your cam really at 17 deg. advance? You degreed it? That's your problem I'd say.

"FREE SAMPLE"

With your combo the 450 sounds a little small. My engine is similar to yours and I'm running a Quick Fuel Sl-1957e 600 cfm. I'm far from a expert but it sounds like it may be a lean issue. Have you looked at your plugs?

Durham Missouri

I will work on pump delivery. I was thinking not enough fuel might be the problem.

56 VIC  Gene Stoehr Sr.

Holley touts this new Quick Fuel Technology. Made in Bowling Green Ky. Go to their web site and check the part number. All I can say the motor pulls as hard as any Y-Block I have ever owned. I like it!!!

56 VIC  Gene Stoehr Sr.

"Holley Slayer" ?!  What is that?  Is that a reference to a  Summit carb or?


Paul

That carb is a little small, you need to work on the accelerator pump curve, a 3310 Holley is a better choice