Super Jet dual 44s on 701

[superjetchet21]

I was reading a forum on here about someone putting a 760 cylinder on a 6t2 bottom end running the stock 760 dual mkuini 44s and they were talking about having to drill a second pulse line? Would you have to do this running the dual 44s on a 701 61x/62t top end?

 

[Matt_E]

You don't strictly have to do it, but I would. It's easy to do.

 

[just joe]

If you have a fuel pump on both carbs, then yes you will need a second pulse line. Or run a single pump.

 

[superjetchet21]

okay, any advice? where/how to go about doing so? Im sure I could figure it out but any advice helps!

 

[Matt_E]

Of it's a stock 701, I'm not sure I would bother with anything but the stock dual 38's.

 

[just joe]

^ agree with Matt

 

[superjetchet21]

ADA head, port/polished, b pipe, msd enhancer, v force reeds, lightened fly wheel.

 

[Matt_E]

It's a ported cylinder? (Don't worry about 'polished', that's nearly meaningless)


If you're going to do it, do it right and install a second pulse fitting.

 

[superjetchet21]

I plan on it, Just trying to get some input on doing so?

 

[Nuklear6]

Even if its ported but still at 81ish mm bore you can't go wrong with oem 38s set up right. having such high drawl or "signal" the 38 make it easy for the small displacement to pull fuel. which allows for high pop off which keeps it from loading up at idle. and allows for great throttle response.....

 

[Matt_E]

If you get an OEM fitting: drill a slightly smaller hole and press in the fitting. Maybe secure with some JB weld, probably not needed

If you get a threaded fitting: drill a slightly smaller hole, tap the hole, screw the fitting in. If you do this, have the cases split with the crank out so that you're not getting metal shavings everywhere. Or do a REALLY GOOD JOB catching them.

 

[jeastes1]

Its been my experience, that a ported 701 cylinder has much better low end power over a 760 cylinder with the same porting. I know everyone says that a 760 can be better, but with extra work, decking the cylinder etc. I wouldn't waste my time on a 760.

 

[superjetchet21]

Do you recommend putting the second pulse fitting in exactly opposite side of the one on the 62t case? (exactly where the other one is on the 64x case)

 

[Matt_E]

Yeah

 

[superjetchet21]

cool, thanks