A discusssion that I started having with Jeff at this weeks race got me thinking.. in the UP/BD rule are you allowed to use any combination of parts within the spec'ed class per UP/BD(heads cams/gear ratios/etc..)? or is it whole assemblies (long block/tranmissions/etc)? I.E. If you had a car classed from 1995-2000. Could you use the 2000 chassis, a 97 block, 95 intake and air monitoring controls, a 98' camshaft and crank, and the 96' cylinder head, gear raios 3-4-5 from the 99' and 1-2 from 98'?

your creation would of never existed on the street but would be legal according to UP/BD. I think I brought this up before, but I do not remember the answer, sorry for my ignorace.