This brings me to my question. The car sat parked for like a week until my VMS cam gear arrived. I installed the cam gear and a friend helped me set the timing because I dont't really know that much. It still detonates now, after playing a lot with the ignition timing,but now it's almost inaudible and the car can be driven around the city and even on the highway without making it detonate. I just have to go easy on the throttle.
My guess is that the dual point injection just doesn't give enough gas to compensate for the extra air that gets sucked in the engine.
Is there anything that I could do to eliminate the detonation besides swapping to multipoint injection? (the swap will be done at some point, no doubt) I already use 98 octane gas but it doesn't help much.