yeah i had dellorto's on my 1600 with L20 and there was a slight rise in fuel consumption over the Hitachis and it did go harder but i must say it needed to be fine tuned to make the difference.I guess that is what its all about isnt it..fine tuning,every little bit adds up.

So wat sort of power have you guys made from an a14 with either twin su's and twin webbers(delortos).

There is nothing quite like the sound of a pair of webers on full noise. They can be tuned to suit a variety of packages. The most important thing is matching the right choke sizes to the carby of choice. Too big a choke size will make the carby work best at higher rpm while a smaller choke size will make the carby's work best down low. There is a guy in Melbourne who is one of the best carby guys I have ever dealt with and runs a shop called 'The Carby Doctor' and he is located off Lewis Rd in Knox ( east melb) He is always up for giving advice and trying to get people on the right track first time.

for $$$ wise id go su's, but for performance id go webbers if tuned right.

either way i went su's and now twin su lpg.... easier than webbers but parts are getting hard to get in aus now from nissan for hitachis (needles jets etc)

for ultra budget and some performance, i was happy with 32/36 on a15.

all depends on budget and set up.

Turbo and blow through Gas research LPG. Oh Yeah. Screw petrol....

The 1 3/4 don't bolt straight on. I turned up some plates but its very easy to do. Price wise I paid $100 for a rebuilt pair and $20 on some needles to tune it. Compare that to the near $1000 price tag some are paying for weber setups. And been completly honest it performs as well as the number of weber setups A-series ive been in but the power delivery is quite a bit smoother.

Dealing with A-series is bang for buck. Go for the cheapest yet almost as good upgrade.

I had a SU setup on my A12gx mockup engine.

My old coupe used to do 17.3 down the quarter mile. looking at the quarter mile log on the site there is a couple of A12 powered webber setups slower than mine.

Quote:
What work was done to the engine because boofhead ran 16.9 with extensive engine mods and webers.

well there is bugger al difference there....

i think you will find there is a fiar bit of difference between 17.3 and 16.9 when you are driving that 1/4 mile.

and there are few na a12s that will break that 17 sec barrier.

I think if you look a bit further into it, some teams of professional racers spend thousndas to shave off thenths of a second, no different out of a 1.2 30year old engine thats been rebuilt.