I have the Ansa (Moss 454-595) system on my '69 B. It bolts right up
to the existing header and sounds good without being harsh. I bolted
mine up with the supplied clamps and then took the car into a muffler
shop and had the joints welded up.
I wouldn't suggest the draft tube. It lets crankcase vapors into the
atmosphere and unfiltered air back into the crankcase. The 18GH setup
(mine)has an oil separator in it and a pipe on the front tappet cover
which connects to the carbs via rubber hoses and a "Y" connector. It
uses a vented cap on the valve cover. In general, crankcase air is
drawn into the engine thru the cap and out through the front tappet
cover into the carbs for combustion. AFAIK, the front tappet cover is
pretty much a salvage item.
Cheers,
CR
Christian, Wellner L. CIV COMNAVAIRSYSCOMPATUXENTRIVERMD AIR 4.1.1.4 wrote:
> Group,
>
> I have a stock'74 B (no overdrive).
> 1) What do you guys think is the best sounding exhaust without being
>too
> loud at highway speeds??
> 2) Does anyone know of where I can get (by mail) a replacement front
>tappet
> cover for my MGB??? I'd like to get either an MGA or a 18G version. I plan
> to run a draft tube. The reason I'm doing this is so I can install the front
> cover (correctly :) and not worry about leaks.
> 3) Also, does anyone know where, prior to PCV, the engine vapors were
>vented
> from??? Did they just have the side vent (tube) and no vent on the valve
> cover??
>
> Thanks, Skip
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