Yeh i know there is'nt any. Ok for any of you considering something like AFR [stud] heads and roller rockers, the standard EFI valve covers [on my setup anyway] will NOT fit. Even using 3 rocker gaskets [which i wouldnt ] its still not enough, the nut on the rocker is still too close. I dont have [as i'm sure a lot dont] access to a load of breaker yards to try valve covers, nor want to buy half a dozen new pairs, i've trawled the net and read all the "well mine fit" or "grind this off" and "grind that" or make your own out of cardboard etc etc. Well first stop was Summit for http://store.summitracing.com/partdetail.asp?part=STF-63940&autoview=sku some 1" alloy valve cover spacers and http://store.summitracing.com/egnse...2&searchinresults=false&Ntt=TFS-51520018&x=42 a 1" manifold spacer kit. So thats choice numero uno, lift everything 1" and screw around grinding it slightly to avoid the alternator "regulator". My other choice is, half an inch will give me enough clearance, and get my good friend [as of now ] to mill the valve spacers from 1" to half inch thick. That way it all just avoids the alternator back, and standard covers still fit, [i can extend or shorten the EGR tube myself] and have a friend who does custom stainless bolts etc, what would you do? Any pitfalls? Bearing in mind once the spacers are milled i'm in s**t if there's something i missed.