Wrong distributor for 69 318?

So, I tried backing the initial timing all the way off to 0* TDC. It's a little bit better, but I'm still getting a lot of hesitation and stuttering that I didn't get with the vacuum advanced unplugged (this, mind you, is on 93 octane gas). Especially just off-idle

My engine is far from a hotrod, but it is probably a little healthier than stock. I've got:

- KB pistons with about 8.75 (iirc, high 8s but less than 9) compression ratio
- 2.5" dual exhaust from TTI
- Factory 69 manifolds
- Factory heads
- Bored 40 over
- 4 barrel intake and carb
- this cam COMP Cams CL20-208-2 COMP Cams High Energy Cam and Lifter Kits | Summit Racing

I've also switched the distributor to Petronix vs. the points a few weeks ago, but the symptoms didn't change.
Am I going to need to recurve my distributor, or even just buy a different one like this? PerTronix D141710 PerTronix Flame-Thrower Plug and Play Billet Distributors with Ignitor II® Module | Summit Racing