Re: some observations

["James J." <m1garand@speakeasy.net>]

Two other options:

1) Look at the Weber (European Weber) DGV downdraught kits that Red-line 
sells.  I'm talking about the style that many of us used on the 
4-bangers in out LBCs.  The type that can be found in the VickyBrit and 
Moss catalogs, not the kind found in Ferraris.  Notice I said type, not 
exact model.  Red-line sells a model w/ twin 38mm bbls, larger than the 
MGB model (32/36).  This type seems to be used by alot of Jeep folks, 
which tells me that it can produce some good torque, though it might be 
a bit starved at full throttle on a stroked 215.  Anyhow, it has three 
choke options: manual/water/electric, so pick your poison.

2)  Are you using a carb w/vacuum secondaries?  You may want to look at 
one w/ mechanical secondaries.  Focus on good idle w/the primaries and 
twiddle with how/when the secondaries open.  Along those lines, I think 
some of the 4-bbls allow you to adjust the size of the barrels and 
venturis.  Perhaps you could down-size the primaries on a big 4-bbl for 
better partial-throttle response.

2a)  Find one of the rare Offenhauser intake manifolds that takes two 
2-bbl carbs

2b)  Look at a Predator carb.  These are the funny-looking box carbs.  
They are a constant-vacuum type carb, like our beloved S.U.'s  Dave 
Vizard raves about them (and he KNOWS carbs).  They are largely 
insensitive to pressure and temp. differences, and require minimal 
tuning.  According to Vizard, they meter fuel far more accurately than 
common 4-bbl carbs, and the only tuning is choosing one of 3 fuel cams, 
though blank cams can be ordered if the engine is extremely small or 
large.  He notes that they work best with dual-plane manifolds, due to 
their spray pattern, at high-rpms.  My ONLY concern would be that they 
look to be a bit taller than a conventional 4-bbl, but I don't know for 
sure.  There are many advantages to a constant-vacuum carb.  I think 
they sell in the $300-$400 range.  Summit and Jeggs cary them.

Later.
James J.

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