Hello all, I have decided that I want to go a little bit quicker than I am right now. Yesterday I drove with my friend who has a 10sec LS1 and now my car feels soooo slow. Anyway, I was wondering if I could run a holley 670, on top of an RPM Air gap intake, with AFR 190's, and Comp cam 276HR (220/230 510/510 114LSA). Well, my question is, would this be well enough mannered to drive on the street? Also, would a holley 670 be able to support that or should I go to some other fuel injection system other than TBI? I don't have enough money to go and change to aftermarket fuel injection (not going carb), so I wanted to make sure this would work and be streetable before I waste lots of money. Thanks.

 

I think the 670 will be fine. You will prolly need the one with bigger injectors.

 

gonna need a custom chip

 

DEFINITELY!

 

I will be running a similar setup to that. I have the Pro Topline 200cc heads with a comp XR276HR cam (224/230 .503/.510 112). The cam should be pretty streetable once tuned, but I don't think the Holley 670 would support it. This setup is good for well over 400fwhp once tuned and so should yours. I will be running the Holley stealth ram mpfi. To swap from TBI to the stealth ram cost me right around $800. That included ECM, wiring harness, 30lb injectors, manifold plenum, throttle body, and fuel pump. If you are going to spend the money on some great heads and a big cam just save a little longer for a new fuel injection.

 

Wow! That's crazy! I knew I would need a custom chip but where did you get that setup for so cheap? I don't think I could find that on Ebay for that price. I was hoping for about 400 to the wheels with my combo, and that would be alot for the 670 to handle. I just want to know, because otherwise I won't buy a 670 yet, and just save that money.

 

I always figured it would cost about under a grand to go to a stealth ram after all the misc parts like gaskets and fuel lines. If that were my combo that you listed I'd put something along the lines of a Stealth Ram on it.

 

JR305,
How did you swap over for such a good price, I also thought that it would be at least a grand to do this?
A guy that I know had a "92 computer and wiring harness that he got from TPIS, is this a good price? Sittin' here wondering if I should see if he's still got it.
Is your motor in yet? If it is howsit running?

Later, Mike

 

Well, you have to look to ebay for some of the parts. I will give you a break down on what I paid and where I got the parts.

Stealth Ram manifold/ AFPR/ fuel rails: $480 with discount. Thunder Racing
Holley fuel pump: $155 thunder racing.
Ford 30 pound injectors: $150 Ebay, but you can find way cheaper smaller injectors ~$30
Speed density ECM/Harness: $120 thirdgen.org classifieds
Stock 48mm throttle body: $30 thirdgen.org classifieds.
Throttle cable/bracket: $0 got from a friend.
Intake $20 thirdgen.org classifieds.


Well, I guess it cost me a bit more than I said, but if you don't need the big injectors you can have this set up for around 800. You could also buy a cheaper fuel pump. This does not include the cost of the fuel lines, their are tons of options but you can’t use the stock ones without modifications.

 

I forgot to add, the best and easiest way to do the wiring is to find a harness from another car. Companies that make harnesses are either too expensive or leave stuff off you need.