Quote:

The swap is 790 cams into a carb 865. The 865 exhaust valve timing is very mild with the valves closing before TDC, while the 790 valves close way after BDC. The long duration allows the inertia of the exhaust gasses flowing down the pipe to pull out remaining exhaust and pull a bigger charge into the cylinder.

I don't have the timing specs for the FI engine, but judging from the power spec's, their cams are probably as good as the 790.

Something to consider is that the 865 exhaust cam is probably a lot better than the 790 on turbocharged engines.



Thanks Ed, probably not worth me doing the mod then, will probably sell them on eBay

Ray(UK)