964 cam choice ??

[jez911st]

hi help i need some camshaft advise i live in england and am having trouble getting the right cams for two engines i am building one for a road car and one for a track day car the road car is a 964 standard engine with 3.8 barrels ssi back date exhaust.
i would like to put some hotter cams in it to make it respond a bit better i have no worries with any emmision problems so what would you advise? the other car is a track day car again a 964 block corrillo rods 3.8 nickies with a 12.5-1 comp ratio on itb,s headers and motec m48 ecu i am running a 915 box with a low ratio gear set to give me 145mph @7250rpm i have some "race cams " in it but they are a bit tame i have 300bhp all day long and it pulls well from 3000 but i want more top end power and about 25 more hp if possable can you help? i have been on the web cam site but it is ball too confusing as some people take the lift at 40thou and they take theirs at 50thou the cams i have got from ninemiester in england give their lift at zero clearence so i am totally confused please can you help thanks JEZ