Hi everyone, I'm in a bit of a bind and was hoping to get some opinions.

I've just had the car in for a tune. The shop had it for a couple of weeks but didn't have any success. Their opinion was that the carbi is too big.

Specs are A15, 1mm overbore, 9.5:1, 41mm and 34mm valves, 4-2-1 extractors, light flywheel, double valve springs, cam is 66-30 degrees exhaust and 33-68 degrees inlet. Carbi is a 40mm Dellorto side draught, with 34mm chokes on a custom manifold.

So is the carbi too big? What other options would you suggest? Problem is that there isn't enough under bonnet clearance for a downdraught, and not enough width for dual SU type carbis.

Thanks, Nathan