Need MAJOR MSD Distrubutor HELP (Timing)

[elev8_dude]

I can't figure out where I'm supposed to be on my timing. I get back fire in the carbs and sometimes at off. I have no real response on shifting and then it kicks in. I have flat areas and in 4th I can feel it hesitating

PLEASE HELP. I can't figure it out and I burnt out on it. Thanks

What bushing and spring combination would you recommend with this set up.

Vehicle: 1969 VW Beetle
Engine: 1915cc (Type 1)
Crankshaft: Forged Counter Weighted
Cam: C35
Compression: 8:1
Power Band: 3,000-5,000
Valves: 40x35
Mixture (Air/Fuel): Slightly Rich
Fuel Octane: 89
Carburetors: Dual 44 Webers (w/CB Performance Update Kit)
Ignition: MSD 6AL (Rev Limiter @ 6,000 RPM)
Coil: MSD Blaster SS
Distributor: MSD Distributor (8485)
Spark Plug Wires: MSD Wires (3193)
Spark Plugs: Bosch Supers (7401)
Battery: Optima Red Top
Alternator: 12v