Good idea. Thanks. I think I have a plan that will work. I think my Scorpions and AFR heads are quit a bit taller than some other set ups. I ordered three sets from Summit. Decided to do it right and get what I wanted appearance wise...wallet be damned.
Question...does the stock 85-93 covers have a breather on the other side also or is it blank.
http://www.summitracing.com/parts/FMS-M-6000-C302/
http://www.summitracing.com/parts/CTR-65-345/
http://www.summitracing.com/parts/FMS-M6582LE302BL/
Here's the results. I got the summit delivery. All arrived and wow...not what I was expecting.
The first link above I attached are Blue "Ford Racing" tall covers... I liked the blue and hoped it would tie into the engine paint I chose. They did not. I did not like them at all color wise or style wise. They are a well made product as are all these covers. These were very tall. They did not fit under the explorer intake even if you did remove the 90 degree bends on the driver's side. You would still need an intake spacer to make them fit. And, they had holes on both sides which I didn't want. Return.
The second link I posted above are the Canton brand covers that claimed to clear roller rockers and the EFI intake. And, they do! And wow, I really like them. Sold!! They are plain jane polished cast alunimum, but I like it. They'll match my intake tube too. So, yes, they clear my roller rockers, clear the intake easily...not even close to hitting anything even with the 90 degree bends in place, and the oil fill neck is far forward and does not hit my BC throttle linkage or anything else for that matter. There are no holes on the driver's side cover...good! The Oil fill neck is soild and the cap is billet, I think...very nice cap. They are very well made too, solid. They are very short appearing...I didn't measure them. They are shorter than the "Cobra" ford racing EFI covers which are next. I think they get away with being short and clear everything because they kept the inside of the cast cover clean of anything...no bumps/lumps or ridges. These are the ticket at $152.95 from summit.
The last set are "Ford Racing" "Cobra" covers made for 86-93 mustangs EFI motors. They cleared both the intake with 90 Elbows in place and cleared the roller rockers. So that is great. There are no holes in the driver's side cover...good! But, they did hit the BC Bronco's throttle linkage and the oil fill tube got in the way of the mount for the BC throttle cable bracket, but you could select another hole location and probably make it work. And you'd need to grind about 1/2" off the bottom of the BC Bronco's linkage bracket to clear the top of the cover...not an issue really. So, YES, these do clear my roller rockers and I was told by a few they wouldn't. I have Scorpion 1.6 pedestal style rockers, on AFR 165 aluminum heads. But, I'm told the AFR's match the GT40 heads deminsionally so I think the stock explorer heads with these rockers would clear too. So I chose the Canton's over these. I liked the look of the Cantons on my engine...they just matched better than the black of the Cobra covers. The Cobra covers could have worked with very little modifications to the BC linkage stuff so don't let that stop you from buying them. I just liked the Canton's better.
Good luck...hope this helps.