Yeah, that thing of mine is still perfectly happy cruising at 110 on the 'enhanced' sections of highways. Hills have it screwed as I mentioned, the Napier-Taupo had sections where you were down to 60 with it loaded. No one could pass you though - too much 'Greta repellent' out the back!
Would make sense with the lighter crank, there (as far as I can recall) some other differences to the top end, cams and valves as well. I looked at turbo fitment, the actual purchase of the turbo kit and getting it plumbed in wasn't too expensive - something like $2500 at that stage. The issue I had at that time was I needed to swap the injection pump out for the version with the vacuum advance system on it, mine didn't have it. That doubled the cost of the parts and needed a fair bit more labour time replacing the lines etc and at that stage the parts weren't readily available second hand unless you lucked into a crashed vehicle that had the right bits. This was on a vehicle that came off a farm deceased estate reg but no wof and requiring a wee bit of rust repair and sorting out. The whole thing cost me less than $2K on the road, at that time they were going for 10-12K... At that time I couldn't justify 5-1/2k on it hanging a hair dryer on the thing for the odd longer trip! Now, probably pay for itself with the price of fuel.
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