Re: Points to electronic ignition?
I know when I had my '67 valiant it was quite common for people to modify a GM TBI system from the mid 80's V6, can't recall off hand. You could also run a batch fire multiport system without a cam sensor to control the injectors.
The big benifit is you get better atomization than with a carb, and gain in fuel economy and power.
Most people that I know That did it saw a 10 percent increas in HP and 10 percent increase in fuel economy. The Multiport batch was slightly better than the TBI setup.
TBI and Batch fire pretty much run like a carb only the rate of fuel flow is controlled. its not like a more modern sequential FI system that sprays onto the intake runners only when that cylinder is on its intake stroke. Direct port is not an option for obvious reasons.
You had to install a couple of sensors,off hand a temp and O2 sensor. the TPS and other sensors were all contained within the Throttle body itself.
The only extra thing you needed was an electronic ignition, fuel pump and fuel lines.
You could get adapters to adapt from the 2 barrel holly to match up to the TBI base.
I'll have to dig around a bit to find out the exact donor car you pulled everything from.
It wasn't a weekend job but might be something interesting to play around with over a winter and really is not all that hard once you dig into it. The hardest part is collecting all of the right parts and wiring it up. The actual throttle body/fuel pump install is quite easy. Especially if you buy an aftermarket external fuel pump. The O2 Bung is easy enough if you can weld, but it may prove to be difficult or impossible in a marine setup do to the manifold desin.
You get a few big benifits, fuel economy, power, more of a closed system(no mor carb gas fume smell) smoother idle. but of course with electronics you get some not so nice drawbacks.
