I don't have personal experience with your setup, but this isn't the first time I've seen this issue posted. I'm afraid you've already answered your own question. A carb spacer can solve your problem along with the added benefit of isolating the carb from manifold heat. You may find that this solution will create an issue with hood clearance though. Plenty of posts on that problem from those wanting to use that oval air cleaner.
Hopefully someone else with actual experience will chime in.
see if there is a shorter cap , years ago , on my FE I had to use the Ford crab type cap (Flat with the wires on the side) On my 408 I have a Ford dist (efi ) and it clears fine and so far it's got 5k on it , 5 times what the mdsd unit lasted
FFR5020 MK III Whitby body +paint, sai mod, Tremec,408, Cobra/Oben brakes , Halibrands, mass flo , gas n pipes, levy rad team3 spinners.Fortes driveshaft, pulleys ,and quick release steering
My oval air cleaner fits just fine for the body, where I had the problem was with the Vintage Air Cobra kit, I had to cut a little off the plastic housing for it to fit once that was done made a simple patch to over the hole then painted the patch a wrinkle black. With the body on you don't even see it.
MK4 Complete Kit #7327 delivered 9 Oct 2010. Roller 12 Jan 2011, First start 22 Dec 2011, 427W (7 Liters) FAST EFI 548 hp, 543 TQ @ flywheel w/ Billit Specialties front end. IRS aluminum case 3.55 gear w/locker, solid bushings. Tremec T56 6 speed, NITTO NT555 EXTREME ZR on Halibrand 17"X9" front 17"X10.5" rear, FFR Bump steer kit, PS, PB, Vintage Air A/C-heater, IDIDIT steering column w/flashers, turn signal, Hi-Low beam switch & horn, Premium rag top, double roll bars.
Maybe you should look for a shorter distributor...not the most ideal solution, but you don't have much room for a spacer with a 408w.
FFR6966 - MK3.1, IRS, AFR 205 headed 408w, depleted bank account, pissed off wife, friends think I'm a hermit, dreaming of driving the Cobr@ someday. My Build Site PS Footbox Mod .pdf.dwg Tire Stencils .pdf.dwg
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