I probably will block off that heat riser when I put it on the other engine.

Before I jump to getting the manifolds resurfaced, I want to see if I have any vaccuum/exhaust leaks that would make that necessary.

For underhood heat could I take out one of my front high-beam headlights and run a pipe from that hole to blow on my turbo? That would almost give the effect of a cold-air intake since the cooler outside air would get sucked into the compressor too. That's the only simple way I can think to ventilate it.

Yes. The T4 flange will be welded to the end of that pipe. It looks jagged because I flattened out those sides so that it would match up to the flange.

It's not really that low. The top of the turbo is about level with the top surface of the exhaust manifold.


69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.