Thanks for the link to PJ Motorsports. I had not seen that before and they have good ideas.
The stacks are from https://dansperformanceparts.com/
I had to fabricate the stacks. My TWM throttle bodies are similar to Weber 48 IDA carbs but do not accept slip in stacks, only bolt on units. I bought the set of 48 IDA slip in race stacks along with a set of cheap steel stacks for Weber 48 IDF that bolt on like the ones that came on the car. I sawed off part of the horn on the bolt on stacks allowing the race stacks to slip on. It resulted in a mostly snug fit and I secured the joint with an ample amount of Ultra Black silicone.
I came across someone that makes nice billet stacks for my application but they were nearly $1,000. I'm not certain they would actually fit. I spent about $250 on the setup you see here.
For the time being, I am using these aluminum debris screens that fit under the stacks. I notched them with a rat tail file for bolt clearance. I have some stainless equivalents on order.
