Hi , i have just bought a 197 in need of a little tlc , got it at a good price though , its black , recaro's , 18" oz ultralageras , rear strut brace , h&r springs , port/polished throttle bodie and maybe a few other bits , looking to supercharge in the near future or take the engine out and replace with a r26 lump , then a decent set of coily's kw v3's or something along those lines , think the 197 needs a good service as it is quite hesitant when accelerating and feels a bit kangaroo'y at times , also think it needs a cam belt ?? is it a big job ??