Fuel fitting question

[beastofablaze]

I'm trying to find out what size threads screw into a stock 88 350 tbi. Not the fuel line but the fitting the fuel line screws into... anybody know what size the male side of that fitting is? The female is 5/8 but the male that screws into the tbi I can't seem to figure out. It looks like it's AN to me but i have no clue what size.

 

[4X4HIGH]

I'm not sure what the size of the male end is but it is a special fitting that utilizes a flat sealing washer against the TBI to seal the fitting.

What are you trying to do? if you're looking to hook up a pressure gauge then it is easy just click this link and buy this part. http://www.cfm-tech.com/catalog/fuel_-_cfm-tech_fuel_psi_adapter_2940807.htm

 

[beastofablaze]

40 bucks!? wow...

if it comes down to it thats an option but i was hoping somebody could tell me the size of the male fitting in the tbi... 11 bucks through jegs. But i don't know the size.

http://www.jegs.com/webapp/wcs/stor...eId=10001&categoryId=22703&searchItemId=81717

Edit: i just realized that those won't fit...

Is the cfm tech adapter the only way to hook up a fuel pressure gauge under the hood? I don't want to use hose clamps either.

 

[4X4HIGH]

It's the only way i'm aware of. I know the fitting is expensive but what can we do. Also that is 39.99 or whatever for just the fitting then you still need to buy the gauge.

 

[beastofablaze]

I got that covered... got mine from jegs... 1/8 npt. Lot cheaper for the range of psi too. mine is 0-100 psi(I know I'll probably never see more than 20 but just incase i get mpfi in the future ) for 20 bucks, cfm tech's gauge is 0-15 psi for 30 bucks.

thanks man.