Few questions

[Scrapla]

1st. On my 347 which is toned down with some gt40p heads, nothing crazy im gonna be installing the NOS 5115 kit good for about 75-100hp which is a dry kit so I went with the 75mm mass air and 24#ers now whats a good fuel pump for that set up I was thinkin the 255Lph just incase I wanted to go SC or something later on.

2nd. Are the stock fuel rails decent mine look like there in great shape and is a fuel pressure regulator needed?

3rd. I wanna get some nice valve covers but everywhere I look they say there for non-EFI cars so where are the EFI ones I also have 1.6 rr's so will clearance be a issue if I wanna re use the stock covers?

[stang_racer20]

1.) 255 would be overkill, a 155 would be perfect for ya.

2.) stock fuel rails which are in good condition can take upwards of 400 - 500 hp. A FPR is always a good idea, esp. w/ a power adder.

3.) chech out www.brothersperformance.com for some cool EFI valve covers. 1.6r's shouldn't be a problem.

Hope this helps a little!

[Scrapla]

Thanks, I have a stock intank pump now about a year old and I was thinking about just getting a inline pump from BBK or someone but I dont know if that would mess up the stock intake already in there?

[glenn95gt]

GT40P's on a 347??? I think you are not maxing out your stroker. I'd seriously look for some Twisted wedge heads, High Ports, AFR 185's, Or Edlebrock RPM's. The 255 in tank is a good Idea in case you want to upgrade later. My buddy had a 331, Twin Turbo, Cobra intake, but was running GT40's, and that pretty much killed his whole combo, power wise.

[Scrapla]

Thats all I could afford the 347 was sittin around my buddies shop and he wanted to get rid of it, this all started as a 302 rebuild with some minor bolt ons but instead I get a 347 with forged internals at least this way i'll be able to drive it alot more and beat the **** out of it, I wanted to go SC later on.

Originally posted by stang_racer20
1.) 255 would be overkill, a 155 would be perfect for ya.

Actually a 155lph intank pump would barely be enough for a 75hp shot of nitrous. Once you jump up to a 100-125 shot...the 155lph won't push enough fuel volume to handle the boost in fuel pressure up to 85psi. I run the NOS #5115 kit as well and had to put an additional inline MSD 200gph (similar to a T-Rex inline) fuel pump in to work in conjunction with my 155lph intank pump. But to answer your question if you could just add an inline pump and leave the stock intank pump...yes, that should work just fine...and you won't have to pull your fuel tank.

[Scrapla]

Thanks thats what I wanted to hear cause I just installed a new intank pump not to long ago and it was a pain, I was looking at the BBK inline that flows over 50gph @70psi im gonna try that combo and see what works best.

Originally posted by Scrapla
Thanks thats what I wanted to hear cause I just installed a new intank pump not to long ago and it was a pain, I was looking at the BBK inline that flows over 50gph @70psi im gonna try that combo and see what works best.

Yeah, that BBK pump will probably do the trick. You may want to call the NOS techline and run your setup by them first just to make sure...but it sounds like you'll be ok.