Reply To: Uprating the 260 engine – TigersEast AlpinesEast

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April 22, 2007 at 9:53 pm #61236

v-mad

Just took the Tiger on a track day. I really think its time for an upgrade now!

I have now got a 4V alloy Intake manifold and a 4V Autolite carb from a mustang, which I plan to fit in place of the stock 2V parts.

First problem seems to be that the 4V carb is too long to fit in the same way round as the 2V. If I turn it round the other way, it should just fit in, but I will have to modify the throttle linkage and fit a longer manual choke cable. Also re-route the fuel line and dizzy vacuum pipe. Alternatively, maybe a Holley or Edelbrock would fit better?

I also notice that the 2V carb sits on a spacer plate that has three hose connections: two for coolant, and one for connecting to the crankcase positive ventilation valve. I was wondering if I need a new 4V plate, or just not bother with the coolant connections, and reconnect the vent hose to somewhere else (maybe the vacuum inlet?). What did you guys do about the plate?