0-60 times are very difficult to obtain w/o very expensive instrumentation. Any attempt to measure 0-60 using your spedometer and a stop watch is flaky at best. I have a GMeter that seems somewhat accurate. New ones may be better yet.
1/4mile times reflect HP pretty well IMHO and can be had at any local strip test-n-tune nights, at least where I'm at. The US V8 guys will look at you a bit, sometimes with genuine interest. And there are also many rice rocket young folks there, so you will be cool. At least here in MI.
Mine ran 16.1 - 16.2 1/4 miles at 85MPH ET years ago at a local track. A bad launch could easily make it a 17s run. However, if you read contemporary road test results, most Fiats ran 18-22s 1/4 miles at 65-70MPH. The Abarth Rallye 1800 was published at 17.1s or so and was supposed to have 128HP at the time. Figure that out.
In the time slip, you'll see that 1/8 mile ET was 10.3 at 68HPH. The speed is a last 60ft average. If you look at typical speed vs time curves, you could estimate 0-60 time maybe somewhere in the 8s range.
For comparison, based on publisehed data, an early Miata with an 1800 118HP FI engine ran mid to high 16s initially. It may have been a bit heavier than a Fiat. Later versions with 128HP ran low 16's. and then later yet with 158HP ran mid to high 15's per published data IIRC.
The only reason for considering the why wheel for my next build is that a steel wheel is safer than a cast one at 8000rpm, which is where I will be at 145HP with my next 1800, one day. It will do nothing for power.