I'm just looking for a V-10 truck. Gas mileage isn't all that much of an issue, as I don't really drive all that far..... 50 bucks worth of gas in my truck pretty much lasts me all month.

 

You should be able to make that with no problem. I have 280ish/347 at the wheels. I'm going to buy another set of EQ heads and have them ported to see if that makes any difference. Might try some different lifters also. Truck pulls like crazy. You'll love it!

 

I can get a week out of that... but I'm covering around 120 miles a day.

 

Keep us posted.

 

The video clip following this pic has nice sound...

 

Little update after 6000 miles. It's been running good but recently developed a intermittent vacuum issue. When coming to a stop, idle drops/vacuum drops and engine stalls....but not always. I ran a smoke test, but didn't find anything. Next day off I'm going to run a couple of tests to see if the brake booster check valve is going south on me plus check the torque on the intake manifold and throttle body. Any other pointers will be greatly appreciated. :-)

 

If the problem is more prevalent when atmospheric humidity is relatively high, take a look at the IAC.

If it's not (or not likely) the IAC and your base tables are properly set up for the additional displacement so there's no risk of running dangerously lean, you can just unplug the pre-cat oxygen sensor for a couple of days of otherwise normal driving to see if the symptom stays away. If you can do that and the symptom stays away, a fresh O2 sensor should fix ya right up.

 

I read a previous post you had on the O2 sensor and this issue. Great info and on my todo list. I have a wide band pre cat that's staying in the green, so I'm confident I'm not running lean. FWIW, I noticed on my Torque app that the O2 sensor isn't getting to a ready state, but the voltage looks fine. That might indicate a failing O2 sensor which would confirm your thoughts.

I have NGK O2 sensors which are about a year old. Any recommendations on a different manufacturer? I know to stay away from Bosch.

thx

 

BTW, I replaced the IAC a couple of days ago with a new Mopar unit. I have new Mopar Throttle Position and Mass Air sensors on order. The current sensors are factory original, so it can't hurt to replace them. I replaced the other sensors when I put everything back together last June. Didn't give the sensors on the throttle body a second look. Probably should have.. LOL

 

If you don't mind paying for peace of mind, the dealership part is the way to go. Otherwise, Denso in preference to NTK. NTK will work well enough but with a higher probability of experiencing lumpy idle for a few seconds after transition to closed loop. Lucky me, I got one of those myself -- but have been running it for five years or so without any real problem.

It's curious that you're not seeing a ready state, though. The PCM should be stuck in open loop, so ignoring the sensor's signal...