4 hole carb spacer for better signal, will it work?

[Mrturner1]

Originally Posted by Mike C

Backfire out of the carburetor is a lean mixture issue. Try moving the accelerator pump cam to the number 2 spot so it comes in faster. You could try a cam assortment to use a more aggressive pump cam. Also think about going up in shooter size.

I have a Barry Grant Stage III 750 on my Camaro that flows 1040 cfm with all the tricks and it is more driveable with better response than the 700 cfm double pumper it replaced.

But the 4 hole would give you more velocity for better throttle response, but it sounds like pump shot to me.

Meaning it's totally possible for me to get this 750 DP to run great on my 355?

[Mike C]

Originally Posted by Mrturner1

Meaning it's totally possible for me to get this 750 DP to run great on my 355?

Yes.

[Gromit]

If it is convenient, could you please show us a photo of your balancer showing the timing tape?

[Mrturner1]

Originally Posted by Gromit

If it is convenient, could you please show us a photo of your balancer showing the timing tape?

I haven't installed the timing tape yet, been busy with work and was also teetering on whether or not I want to sand down the paint so the tape will stick.