our first change was from another nitro and meth to VP Nitro and Meth with the same oils, the changes as per the site were what we found with these simple changes, but since we changed the oil to what we use now its even more potent !

I say run at least 20 % unless you are sanctioned to run 16% of course. And yes i can make fuel to your specs, i do for a few people who race in the circuit , The figures mentioned in the site are old figures, the latest blend of fuel has at least another 8% cooling and 12% increase in power on the blend mentioned.. I havent colated my results yet but thats just off the top of my head from memory.. All our products are VP oils and nitro and coogee meth ..
As far as float test yes , testing is done for %age nitro on spot checking after qualifying usually ,, when sopt checking for specific gravity make sure the liquid is at 60Deg F if its not it needs to be adjusted , just make sure the guy thats testing knows about specific gravity adjustment and related temps.. we do all our mixing by volume not weight so its accurate to volume as opposed to weight which will fluctuate with ambient temps.. besides mixing nitro to weight in some instances can leave you with a lower nitro content because of nitros specific gravity.. of course there are specific programs that compensate for this .. not every one uses these programs..

Well the mods can run at any %age nitro but i need to know for shimming and plug use, i also need to know what you want out of the engine, Most .12 ers want a smoother transition from slow to mid as is a linear feel for cornering.. and of course terrifying top end.. so if you can specify what you wnat out of the engine i can deliver that feel for you

ARMAC rules used to sanction port height and volume but it was quashed so its basically open modding, as long as its a .12 and 3 port youre legal..


Hope this helps !
Cheers
MM