That is exactly the issue I had... Call Scott at Aerosport. He listened and helped. Based on my dealings there, he will know what you need. He will need to look up your engine though, to know the exact carb and sump.
My initial setup had a 1/4" phenolic spacer to begin with, thus the thick spacer that is integral to my tapered insert. Otherwise, yes it would alter the alignment from The lower cowl snout intake to the filtered air box.
EAA Tech Counselor
RV-9A #92103 - N803DK
G3X, Superior XO-320, Dual Pmags, Catto 3B
1974 Bellanca Super Viking - N16AW - Flying
RV-8 #83565 - N184DK - building
1968 Mooney M20C - N6801N - Sold
1956 C-182 - N744W - Sold
Last edited by Dbro172 : 03-15-2015 at 07:41 AM.