Air Cleaner-Duel Fuel

[Rico]

Hay all,

My van has an Impco 300 gas mixer on it. When I bought it there was no air cleaner attached with it...was the only thing I didnt look at. Does anyone know what the heck bolts onm top of these things? I dont see a normal air cleaner fitting somehow, doubt the bonnett would bloody close.

Thanks as always!!

[richo]

I have an impco gas carby on my van I will try and get a photo of it ,see if it is the same.
cheers

[ozbox]

Hay all,

My van has an Impco 300 gas mixer on it. When I bought it there was no air cleaner attached with it...was the only thing I didnt look at. Does anyone know what the heck bolts onm top of these things? I dont see a normal air cleaner fitting somehow, doubt the bonnett would bloody close.

Thanks as always!!

depends what base is on it..ive got an impco 425 on the sinbox with a rochester base and a 14x3inch air cleaner..had to cut the frame work one the bonnet to close it....ah wait..you have 6 cyl..dunno

[commodorenut]

The Impco 300 is almost invariably used "upside down" on the end of a snorkel, which fits onto the top of a 4bbl carby.
The frame of the 300 mixer takes a 70s Valiant filter, and it's held on by a black metal plate that fits onto the mixer itself (on the same face as the vapour line).

If you need them, I can take some pics of my setup at present, which is how the Impco 300 was sold as a standard dual fuel package.

[ozbox]

what u got that on mick?

[commodorenut]

Currently on the Brock wagon, while I'm waiting for a 425!

It's got too much compression to run on fuel. The heads have had that much off them, that it's got 1/8" washers under the rocker supports, and the manifold is metal to metal on the valley ends of the block. It was all done prior to my ownership, and they're all the original parts (especially the modded intake) so I didn't want to change them. Plus it's pretty hard to find a good pair of VL heads that aren't cracked.
A mate went through 8 heads to get 2 good ones.