It's odd, my old home built moonstone RWD saff was rollling roaded at 369.8bhp (the .8 matters!

) , it was slightly low comp, 7.7:1, valve cut outs, a ported & polished head with twin BD14's , greens with a T34.48, live mapped, good cooler & exhaust,and it went like an absolute bastard compared to any other cossie that was running greys etc. The only thing I ever got duffed up by was a white Escos running 500+ Bhp with an Indian guy driving it, that was a FAST car!
Seriously, I don't know what was different about that car to anything else, might be the cams? But it just used to pull 5th gear so hard until the 7.7k limiter. I ended up stuffing it into a hedge at 30Mph

(don't ask), probably a good thing really as going through rear diffs as consumables & a set of rear boots every month was getting kinda expensive, and I drove everywhere sideways like a fucking lunatic, not a day went by without a 150+Mph run!

...Still think that car was the best road cossie I ever owned, it just destroyed everything including bikes, 1000's excepted!
Just goes to show that even today a sorted rear drive cossie is still a mentally fast road car, not many things around that weigh in at circa 1200Kgs with 350+Bhp a chip change away?