i have an HEI and ran the stock air cleaner with the stock 3-4" spacer in between it now i switched to edelbrock performer intake, and a edelbrock signature seris air cleaner (it seems light it has a SLIGHT drop base) it clears the HEI just fine but the base hit the electric choke on my Qjet so i used the stock 3-4" spacer but it would work PERFECT with a 1" spacer which edelbrock sells for 10 bucks....
oh anthor thing i just remember i have a 1" carb spacer which could make a diffrence
------------------
My Truck pictures
www.xframeimpala.com
68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET"
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350
IM me on aol SN= SHAGROLET