Hello, I will start off and tell you what I have,
27 fever with some mods here we go
502 bored .30 over
h-beam rods
mahl flat top pistons
had stock heads but putting on some good aluminum ones
imco dry exhaust
msd
procharger 8lb boost
areomotive fuel pump
sent ecm off had it programed (a-z speed & marine)
cam 580 lift

ok,I think thats all.now for some info on whats going on.
I had it out last weekend and lost power so I did some checking and found out I had burnt 2 valves. I have just ordered some good aluminum heads with s.s valves,roller rockers, I know that it had to run lean to burn these valves, so I also have ordered a wide band monitor system, but the problem is I live in Arkansas and there is no one that I can send my ecm off to around here that I know of..... or even take the boat to and have it programed.I love the fact of keeping it efi system . but I may be forced to pull it off and put a good old carb on it but I would rather keep it injected. any help would be appreciated.
thanks brent

Brent, since you are getting new heads.... spend the extra dough for some Inconel exhaust valves. SS on the intakes is fine, but the exhaust is what sees extreme heat and Inconel are made for that.

If you get the wideband system, just keep an eye on the AFR's and make notes at each rpm level as to what they are and when you find a good tuner, you can relay exactly what it is doing so he can make adjustments accordingly. The biggest issue is finding a compromise on a tune for EFI since the weather changes affect it, there is no one perfect tune.

I would contact someone along the lines of Eddie at Youngs or maybe even Tyler Crocket. I'm pretty sure either ones of those guys could get you lined out without being on the boat. And with you keeping good noted on how it's acting and having the specifics like AFR's at each rpm range and fuel pressure, engine temps etc.... should be able to get you a decent tune that will not hurt stuff.

One other thing to look at is the fuel pressure regulators. Make sure you have a good return style, rising rate regulator and that it is referenced to the right spot to read manifold pressure. But contact a few of those people and they will help you get lined out. There is no need to lose the EFI, they work great when tuned properly and some will even say make more power when tuned correctly.

Hello, thanks for the info! where would i find eddie or tyler, not quit sure on where they are, and I am running the fuel regulator that procharger sent with the set up. I did install a remote fuel psi gauge when I installed the charger on the boat so I could keep a eye on that. I love the EFI system and I really dont want to pull it off, thats why I post this thread but if I can't get the tuning right then I got to remove it.

thanks brent

Both guys are members here and sometimes chime in, although right now I am sure they are swamped.

Here is Youngs http://www.youngperformancemarine.com/

I am not sure what Tyler Crockets is, but he is a regular here too. You might try looking at the index on the left side of the page on the home page for his name.

Some people have had real issues with the Procharger fp regulator that is supplied with their kit.... others have had success. I'd pick a tuner to work with and use whatever he prefers. Ultimately, you want to pick one guy and stick with him.... everybody likes to do things differently, which isnt a bad thing (cause any of the guys I mentioned have great success in this industry), but they might go about achieving your goals in different ways.

thank for the info,but that guy is on the coast.Is there anyone closer that can help tune a efi system? Thats the problem I dont want to keep downing my boat everytime I need to pull the ecu off and send it in to get reprogramed .

Once a good general tune is setup, you shouldn't have to take it off and send it back in.

I personally don't know anyone else to recommend... maybe someone else will chime in.

This probably wont help, but have you read the thread in the "Beware" section about AS&M tuning? Maybe post a question in the general section for a tuner in your area?

Eddie Young's shop is outside Nashville TN not on the
East coast. Tyler Crockett is in east Lower Michigan - Ruby MI.
Eddie's shop is a reasonable drive from you in Hot Springs.
Eddie is one of the best. Make arrangements beforehand
so he can tune you up on the water and you're on your
way home later that day.

Thanks DB... I thought he was fairly close to him.

hey that sounds great! thanks alot guys....... and not only have i heard about az speed and marine! I can tell you some things first hand. thats why I am in the shape that i am now.you wouldnt have Eddies number handy would you