with the tbi unit having two hold downs for the aircleaner coming up out of it, what are you using for a TBI hat if you boosted your setup?

did you just make it custom? I was thinking of welding the factory air cleaner together and just using it maybe.

I see this one as part of what looks like an old procharger kit.

M198643753.jpg

I did have the instructions from the old vortech truck kit on how to modify the TBI for blow through but cant seem to find them right this second. I remember it being that we had to drill two holes and put a TBI spacer in between with a port for a 2 or 3 bar map sensor IIRC.

I've got a 4.3, 5.0, 5.7, and 7.4 TBI unit and have both sets of 7.4 regular injectors as well (not the goofy ones that needed the higher fuel pressure to run higher).

I have also been dabbling with the idea of doing draw through as well. I have two 79 buick 3.8 turbos with the carbon seals and the 4bbl intake that bolts to it which I can get a tbi adapter plate for.

Just not sure which route I want to go at this point.