I picked up a Autometer Fuel Pressure gauge with the electric sending unit, I cant seem to find the correct adapter for the sending unit to the test port on the rail. any idea what part number it is the summit or something?
I believe it is –4an female to 1/8 NPT female fitting

 

anyone?

 

I think you're looking for this HERE
Hope this helps.

 

Yup that would ahve worked. thank you very much...Summit didnt have it in stock but they do cary it.
http://store.summitracing.com/partde...5&autoview=sku
Ended up going with
Russell # 670290 with a -4an cap...worked out great.
http://store.summitracing.com/partde...5&autoview=sku
Thanks everyone that responded.