twin 40s help!

[womble sri]

just bought a nova with ok cond bodywork standard pretty much apart from wheels ect except its got a pair of twin 40 dellorto carbs! its an sr its not that fast it drinks petrol and needs a new gasket on the inlet manifold there obviously not set up prpoperly and i know it needs a cam what other parts do i need to go with the carbs?

[Adam]

What do you mean what other parts?

If it runs, just a bit rough, then it will probably need setting up on a rolling road.

[Stuart]

i'd get the inlet manifold off to see what shape poert the manifold has. they "should" be square to match the head ports. if the manifold has round poers or cathedral window shape ports then get an SRi head Or 1.2 head repesctively. you will see a power gain with either :o)


and yes get them setup at a decent tuner

[womble sri]

i.ve got an sri head on my drive, weell 2 actually, so if the maniflod inlets are that shape then i will bang that on. what about cams what profile is best. i saw some matey talking about a fuel pressure regulator what else is needed to complete a descent setup?

[Adam]

The sri inlet is different to the SR inlet. The port shapes are different.
So if you fit a SRI head you would need a SRi inlet manifold for the carbs.
Unless the inlet is already an SRI type inlet :o