Death on sudden opening of throttle

[Tony Bryant]

> 
> >I've finally rebuilt my intake system (welded up from steel exhaust 
> >tubing), but I've got the following problem:
> >
> >When the throttle is mashed at lowish RPMs i.e. <2000RPM
> >the engine dies for about 1/2 - 1 second, before getting its
> >act together and then pulling strongly. 
> >

> Too much air? More fuel won't help. Is the intake just flat out too
> big?
> 

Its pretty small really. 14" * 1.625" runners, with a plennum of 
about 1.5 litres (on a 2L NA 4 cyl)