Technical Stromberg 97 2x2 flathead jetting ?

Hi , Are any of you guys running stromberg 97 2x2 on a flathead ?
If so can you tell me the best starting point for jet size ?
I have 2 x brand new 97s with .045 main jets on an eddie meyer manifold , engine is a 255ci mercury 8BA .
I have trolled through previous posts and haven't found the info I need yet.
Any help would be greatly appreciated.

 

The first thing you need to do is ditch those paper airfilters.
Strombergs do their best work when gathering air from a non-turbulent, non-restrictive air source. If you must use the small aircleaners, K&N filters are a good choice.
Most rascally flatheads do well with .044 mains and #69 pv's, or .043 mains with #67 pv's, depending on your location (al***ude).

 

Set it up with the existing jets,.... After it's dialed in, then make any changes (if needed). K&N filters, definitely.

Happy Roddin', 4TTRUK

 

I will agree that the choice of air filters makes a world of difference and the elcheapo paper filters must be checked for air flow or its like adding a choke circuit. As for jetting my experience and using the new ethanol gas has been to jump the jet size up from 45's to 48's. Its a little bit richer idling around but on the highway doesnt run lean.

 

A rule of thumb for any hotrod (or elderly oil bath, horsehair, mesh type) aircleaner is to get the car running without it. THEN put on the aircleaner...if anything changes, you want to toss the thing and get one that actually p***es air. If you get little ones that flow enough, keep after maintenance because they are still toodamnsmall and will be loaded with dirt pretty soon.

 

I got my jets and PV's direct from uncle max. Talked to him about it and he recommended the 0.044 main and #69 PV's. Easy install, quick synch of the carbs and tune and it runs awesome now. World of difference for me.

 

Thanks a lot for all the advice . I appears that everyone is on close to the same page , which helps.
I will be fitting the new manifold in the next week or so and I will post up my results and some pics.

 

This is a good idea . I will definately do this.

 

The big problem...a row of little chrome things or an old Thickstun shell look great.
A 14X4 Delco that is actually a good cleaner looks like ****.
But look at the size of the aircleaner on your mower and compare it with one of the little chrome things...it's a wonder any old hotrads even ran!

 

I'm getting ready to put 2 97's on my 276 3/4 cam flatty. Could we see some examples of good flowing air cleaners. Thanks,