Performer RPM Air Gap, need to know if itll clear the hood or if I need a cowl hood to compensate. Would have a TBI adapter plate ontop and tbi with a 14x3" drop base air cleaner. Thx guys.

I just caculated this out. The regular performer is 4.845"
The Performer RPM Air-Gap is 4.725"
Performer TBI is 4.40"
Stock manifold is 4.15"
All those heights are at the carb/TBI base plate. Found by taking front of manifold height + rear height and divide all that by 2 to get the average manifold height.

So, if you have an extra .7" above stock, it should work.. Just put something soft on the wingnut stud to find out how much space you have left and that should tell you if the RPM Air-Gap will fit.. that is... the Performer TBI is .25" taller than stock.

Don't forget to factor in your adaptor plate as well.

How is it possible that the regular performer is taller than the RPM air-gap? That doesn't sound possible unless you're taking into account the adaptor plate which in that case you aren't making sence with the RPM's clearance.

Ya im confused now.

mine fit...but i think that mine is a little odd. most people have clearance problems as far as i know.

i have the performer rpm air gap for vortec heads, the turbo city 3/8" adaptor, and open element.

i also use a flat base air filter assembly. and i had to "flatten? both the base and the lid by wrapping it up with a towel, and putting a piece of plywood over it and jumping on it for a while .

it's close...but, it worked.

-brian

Sorry, those were for Vortec heads...

regular Performer - 4.05"
regular Performer RPM Air-Gap - 4.725"
Performer Air-Gap - 4.32"

Sorry about that.. I guess they are quite a bit different arn't they... Oh well... now we have a nice little collection of manifold heights.

Ya i meant 4 vortec heads sorry 4 not clarifying.

Its is for vortec heads, sorry for not clarifying that.