Has anyone run a Performer RPM Air Gap on a TBI?

 

I've run the non air-gap RPM, works great. I'll have to warn you even with the exhaust crossover in mine I could get the TB to ice over in really cold weather. Nothing too major, but the throttle would stick slightly open from time to time. I would imagine the air-gap would be much worse about this.

If you have a stock hood getting that to fit is going to be a nightmare. My brother barely got a GM performance vortec carb intake to fit with a 2" filter, and it's a good 1/4" shorter than my RPM.

 

Yes.

I had icing of the throttle blades on a 50* day (with a CAI).

Also gained nothing at the track over a hogged out Edel TBI intake. My cam is only rated to 5200; with a larger cam there may have been an improvement.

 

why do the throttle blades ice over?Just asking.Pardon my ignorance

 

When fluids or gases get compressed they gen hotter, and when they decompress they colder. This basic theory is what governs A/C. The same thing happens with our TBI. When the fuel is sprayed it cools rapidly and if the conditions are right it will freeze almost instantly to the throttle body.

 

I also run a air gap on my vortec 350 in my 92 rs and it works great.