I could do the same work to an FRP engine as I would with a standard 1.7 for better results. I'm looking to also replace the Crankshaft and upgrade all the valves, valve springs, tappets etc... I was also wondering if the clearance between the cylinders will allow me to bore them out wider and put lighter and bigger pistons in? again money isn't a massive issue, I'm aiming to take this engine and trying to get the most performance out of it whilst keeping it naturally aspirated.